Updated to use sprockets! Ah, much cleaner.

24 files changed, 4454 insertions, 145 deletions

diff --git a/templates/project/public/fonts/fontawesome-webfont.eot b/templates/project/assets/fonts/fontawesome-webfont.eot
index 89070c1..89070c1 100755
--- a/templates/project/public/fonts/fontawesome-webfont.eot
+++ b/templates/project/assets/fonts/fontawesome-webfont.eot
diff --git a/templates/project/public/fonts/fontawesome-webfont.svg b/templates/project/assets/fonts/fontawesome-webfont.svg
index 1245f92..1245f92 100755
--- a/templates/project/public/fonts/fontawesome-webfont.svg
+++ b/templates/project/assets/fonts/fontawesome-webfont.svg
diff --git a/templates/project/public/fonts/fontawesome-webfont.ttf b/templates/project/assets/fonts/fontawesome-webfont.ttf
index c17e9f8..c17e9f8 100755
--- a/templates/project/public/fonts/fontawesome-webfont.ttf
+++ b/templates/project/assets/fonts/fontawesome-webfont.ttf
diff --git a/templates/project/public/fonts/fontawesome-webfont.woff b/templates/project/assets/fonts/fontawesome-webfont.woff
index 09f2469..09f2469 100755
--- a/templates/project/public/fonts/fontawesome-webfont.woff
+++ b/templates/project/assets/fonts/fontawesome-webfont.woff
diff --git a/templates/project/public/images/.empty_directory b/templates/project/assets/images/.empty_directory
index 3da7f49..3da7f49 100644
--- a/templates/project/public/images/.empty_directory
+++ b/templates/project/assets/images/.empty_directory
diff --git a/templates/project/public/images/favicon.ico b/templates/project/assets/images/favicon.ico
index 29a408f..29a408f 100644
--- a/templates/project/public/images/favicon.ico
+++ b/templates/project/assets/images/favicon.ico
diff --git a/templates/project/public/javascripts/.empty_directory b/templates/project/assets/javascripts/.empty_directory
index 3da7f49..3da7f49 100644
--- a/templates/project/public/javascripts/.empty_directory
+++ b/templates/project/assets/javascripts/.empty_directory
diff --git a/templates/project/assets/javascripts/application.coffee b/templates/project/assets/javascripts/application.coffee
new file mode 100644
index 0000000..5b38c46
--- /dev/null
+++ b/templates/project/assets/javascripts/application.coffee
@@ -0,0 +1,25 @@
+# dashing.js is located in the dashing framework
+# It includes jquery & batman for you.
+#= require dashing.js
+
+#= require ./dashing.gridster.js
+#= require ./jquery.knob.js
+#= require_tree ../../widgets
+
+console.log("Yeah! The dashboard has started!")
+
+Dashing.on 'ready', ->
+  widget_margins = [5, 5]
+  widget_base_dimensions = [340, 380]
+  numColumns = 3
+
+  contentWidth = (widget_base_dimensions[0] + widget_margins[0] * 2) * numColumns
+
+  $('.gridster').width(contentWidth)
+
+  $('.gridster ul:first').gridster
+    widget_margins: widget_margins
+    widget_base_dimensions: widget_base_dimensions
+    avoid_overlapped_widgets: !Dashing.customGridsterLayout
+    draggable:
+      stop: Dashing.showGridsterInstructions
diff --git a/templates/project/assets/javascripts/dashing.gridster.coffee b/templates/project/assets/javascripts/dashing.gridster.coffee
new file mode 100644
index 0000000..0f6f9a1
--- /dev/null
+++ b/templates/project/assets/javascripts/dashing.gridster.coffee
@@ -0,0 +1,32 @@
+#= require_directory ./gridster
+
+# This file enables gridster integration (http://gridster.net/)
+# Delete it if you'd rather handle the layout yourself.
+# You'll miss out on a lot if you do, but we won't hold it against you.
+
+Dashing.gridsterLayout = (positions) ->
+  Dashing.customGridsterLayout = true
+  positions = positions.replace(/^"|"$/g, '')
+  positions = $.parseJSON(positions)
+  widgets = $("[data-row^=]")
+  for widget, index in widgets
+    $(widget).attr('data-row', positions[index].row)
+    $(widget).attr('data-col', positions[index].col)
+
+Dashing.showGridsterInstructions = ->
+    data = $(".gridster ul:first").gridster().data('gridster').serialize()
+    $('#save-gridster').slideDown()
+    $('#gridster-code').text("
+      <script type='text/javascript'>\n
+      $(function() {\n
+      \ \ Dashing.gridsterLayout('#{JSON.stringify(data)}')\n
+      });\n
+      </script>
+    ")
+
+
+$ ->
+  $('#save-gridster').leanModal()
+
+  $('#save-gridster').click ->
+    $('#save-gridster').slideUp()
\ No newline at end of file
diff --git a/templates/project/assets/javascripts/gridster/jquery.collision.js b/templates/project/assets/javascripts/gridster/jquery.collision.js
new file mode 100755
index 0000000..5d37c61
--- /dev/null
+++ b/templates/project/assets/javascripts/gridster/jquery.collision.js
@@ -0,0 +1,224 @@
+/*
+ * jquery.collision
+ * https://github.com/ducksboard/gridster.js
+ *
+ * Copyright (c) 2012 ducksboard
+ * Licensed under the MIT licenses.
+ */
+
+;(function($, window, document, undefined){
+
+    var defaults = {
+        colliders_context: document.body
+        // ,on_overlap: function(collider_data){},
+        // on_overlap_start : function(collider_data){},
+        // on_overlap_stop : function(collider_data){}
+    };
+
+
+    /**
+    * Detects collisions between a DOM element against other DOM elements or
+    * Coords objects.
+    *
+    * @class Collision
+    * @uses Coords
+    * @param {HTMLElement} el The jQuery wrapped HTMLElement.
+    * @param {HTMLElement|Array} colliders Can be a jQuery collection
+    *  of HTMLElements or an Array of Coords instances.
+    * @param {Object} [options] An Object with all options you want to
+    *        overwrite:
+    *   @param {Function} [options.on_overlap_start] Executes a function the first
+    *    time each `collider ` is overlapped.
+    *   @param {Function} [options.on_overlap_stop] Executes a function when a
+    *    `collider` is no longer collided.
+    *   @param {Function} [options.on_overlap] Executes a function when the
+    * mouse is moved during the collision.
+    * @return {Object} Collision instance.
+    * @constructor
+    */
+    function Collision(el, colliders, options) {
+        this.options = $.extend(defaults, options);
+        this.$element = el;
+        this.last_colliders = [];
+        this.last_colliders_coords = [];
+        if (typeof colliders === 'string' || colliders instanceof jQuery) {
+            this.$colliders = $(colliders,
+                 this.options.colliders_context).not(this.$element);
+        }else{
+            this.colliders = $(colliders);
+        }
+
+        this.init();
+    }
+
+
+    var fn = Collision.prototype;
+
+
+    fn.init = function() {
+        this.find_collisions();
+    };
+
+
+    fn.overlaps = function(a, b) {
+        var x = false;
+        var y = false;
+
+        if ((b.x1 >= a.x1 && b.x1 <= a.x2) ||
+            (b.x2 >= a.x1 && b.x2 <= a.x2) ||
+            (a.x1 >= b.x1 && a.x2 <= b.x2)
+        ) { x = true; }
+
+        if ((b.y1 >= a.y1 && b.y1 <= a.y2) ||
+            (b.y2 >= a.y1 && b.y2 <= a.y2) ||
+            (a.y1 >= b.y1 && a.y2 <= b.y2)
+        ) { y = true; }
+
+        return (x && y);
+    };
+
+
+    fn.detect_overlapping_region = function(a, b){
+        var regionX = '';
+        var regionY = '';
+
+        if (a.y1 > b.cy && a.y1 < b.y2) { regionX = 'N'; }
+        if (a.y2 > b.y1 && a.y2 < b.cy) { regionX = 'S'; }
+        if (a.x1 > b.cx && a.x1 < b.x2) { regionY = 'W'; }
+        if (a.x2 > b.x1 && a.x2 < b.cx) { regionY = 'E'; }
+
+        return (regionX + regionY) || 'C';
+    };
+
+
+    fn.calculate_overlapped_area_coords = function(a, b){
+        var x1 = Math.max(a.x1, b.x1);
+        var y1 = Math.max(a.y1, b.y1);
+        var x2 = Math.min(a.x2, b.x2);
+        var y2 = Math.min(a.y2, b.y2);
+
+        return $({
+            left: x1,
+            top: y1,
+             width : (x2 - x1),
+            height: (y2 - y1)
+          }).coords().get();
+    };
+
+
+    fn.calculate_overlapped_area = function(coords){
+        return (coords.width * coords.height);
+    };
+
+
+    fn.manage_colliders_start_stop = function(new_colliders_coords, start_callback, stop_callback){
+        var last = this.last_colliders_coords;
+
+        for (var i = 0, il = last.length; i < il; i++) {
+            if ($.inArray(last[i], new_colliders_coords) === -1) {
+                start_callback.call(this, last[i]);
+            }
+        }
+
+        for (var j = 0, jl = new_colliders_coords.length; j < jl; j++) {
+            if ($.inArray(new_colliders_coords[j], last) === -1) {
+                stop_callback.call(this, new_colliders_coords[j]);
+            }
+
+        }
+    };
+
+
+    fn.find_collisions = function(player_data_coords){
+        var self = this;
+        var colliders_coords = [];
+        var colliders_data = [];
+        var $colliders = (this.colliders || this.$colliders);
+        var count = $colliders.length;
+        var player_coords = self.$element.coords()
+                             .update(player_data_coords || false).get();
+
+        while(count--){
+          var $collider = self.$colliders ?
+                           $($colliders[count]) : $colliders[count];
+          var $collider_coords_ins = ($collider.isCoords) ?
+                  $collider : $collider.coords();
+          var collider_coords = $collider_coords_ins.get();
+          var overlaps = self.overlaps(player_coords, collider_coords);
+
+          if (!overlaps) {
+            continue;
+          }
+
+          var region = self.detect_overlapping_region(
+              player_coords, collider_coords);
+
+            //todo: make this an option
+            if (region === 'C'){
+                var area_coords = self.calculate_overlapped_area_coords(
+                    player_coords, collider_coords);
+                var area = self.calculate_overlapped_area(area_coords);
+                var collider_data = {
+                    area: area,
+                    area_coords : area_coords,
+                    region: region,
+                    coords: collider_coords,
+                    player_coords: player_coords,
+                    el: $collider
+                };
+
+                if (self.options.on_overlap) {
+                    self.options.on_overlap.call(this, collider_data);
+                }
+                colliders_coords.push($collider_coords_ins);
+                colliders_data.push(collider_data);
+            }
+        }
+
+        if (self.options.on_overlap_stop || self.options.on_overlap_start) {
+            this.manage_colliders_start_stop(colliders_coords,
+                self.options.on_overlap_stop, self.options.on_overlap_start);
+        }
+
+        this.last_colliders_coords = colliders_coords;
+
+        return colliders_data;
+    };
+
+
+    fn.get_closest_colliders = function(player_data_coords){
+        var colliders = this.find_collisions(player_data_coords);
+        var min_area = 100;
+        colliders.sort(function(a, b){
+            if (a.area <= min_area) {
+              return 1;
+            }
+
+            /* if colliders are being overlapped by the "C" (center) region,
+             * we have to set a lower index in the array to which they are placed
+             * above in the grid. */
+            if (a.region === 'C' && b.region === 'C') {
+                if (a.coords.y1 < b.coords.y1 || a.coords.x1 < b.coords.x1) {
+                    return - 1;
+                }else{
+                    return 1;
+                }
+            }
+
+            if (a.area < b.area){
+                return 1;
+            }
+
+            return 1;
+        });
+        return colliders;
+    };
+
+
+    //jQuery adapter
+    $.fn.collision = function(collider, options) {
+          return new Collision( this, collider, options );
+    };
+
+
+}(jQuery, window, document));
diff --git a/templates/project/assets/javascripts/gridster/jquery.coords.js b/templates/project/assets/javascripts/gridster/jquery.coords.js
new file mode 100755
index 0000000..e3bd5e6
--- /dev/null
+++ b/templates/project/assets/javascripts/gridster/jquery.coords.js
@@ -0,0 +1,108 @@
+/*
+ * jquery.coords
+ * https://github.com/ducksboard/gridster.js
+ *
+ * Copyright (c) 2012 ducksboard
+ * Licensed under the MIT licenses.
+ */
+
+;(function($, window, document, undefined){
+    /**
+    * Creates objects with coordinates (x1, y1, x2, y2, cx, cy, width, height)
+    * to simulate DOM elements on the screen.
+    * Coords is used by Gridster to create a faux grid with any DOM element can
+    * collide.
+    *
+    * @class Coords
+    * @param {HTMLElement|Object} obj The jQuery HTMLElement or a object with: left,
+    * top, width and height properties.
+    * @return {Object} Coords instance.
+    * @constructor
+    */
+    function Coords(obj) {
+        if (obj[0] && $.isPlainObject(obj[0])) {
+            this.data = obj[0];
+        }else {
+            this.el = obj;
+        }
+
+        this.isCoords = true;
+        this.coords = {};
+        this.init();
+        return this;
+    }
+
+
+    var fn = Coords.prototype;
+
+
+    fn.init = function(){
+        this.set();
+        this.original_coords = this.get();
+    };
+
+
+    fn.set = function(update, not_update_offsets) {
+        var el = this.el;
+
+        if (el && !update) {
+            this.data = el.offset();
+            this.data.width = el.width();
+            this.data.height = el.height();
+        }
+
+        if (el && update && !not_update_offsets) {
+            var offset = el.offset();
+            this.data.top = offset.top;
+            this.data.left = offset.left;
+        }
+
+        var d = this.data;
+
+        this.coords.x1 = d.left;
+        this.coords.y1 = d.top;
+        this.coords.x2 = d.left + d.width;
+        this.coords.y2 = d.top + d.height;
+        this.coords.cx = d.left + (d.width / 2);
+        this.coords.cy = d.top + (d.height / 2);
+        this.coords.width  = d.width;
+        this.coords.height = d.height;
+        this.coords.el  = el || false ;
+
+        return this;
+    };
+
+
+    fn.update = function(data){
+        if (!data && !this.el) {
+            return this;
+        }
+
+        if (data) {
+            var new_data = $.extend({}, this.data, data);
+            this.data = new_data;
+            return this.set(true, true);
+        }
+
+        this.set(true);
+        return this;
+    };
+
+
+    fn.get = function(){
+        return this.coords;
+    };
+
+
+    //jQuery adapter
+    $.fn.coords = function() {
+        if (this.data('coords') ) {
+            return this.data('coords');
+        }
+
+        var ins = new Coords(this, arguments[0]);
+        this.data('coords', ins);
+        return ins;
+    };
+
+}(jQuery, window, document));
diff --git a/templates/project/assets/javascripts/gridster/jquery.draggable.js b/templates/project/assets/javascripts/gridster/jquery.draggable.js
new file mode 100755
index 0000000..52a18d4
--- /dev/null
+++ b/templates/project/assets/javascripts/gridster/jquery.draggable.js
@@ -0,0 +1,327 @@
+/*
+ * jquery.draggable
+ * https://github.com/ducksboard/gridster.js
+ *
+ * Copyright (c) 2012 ducksboard
+ * Licensed under the MIT licenses.
+ */
+
+;(function($, window, document, undefined){
+
+    var defaults = {
+        items: '.gs_w',
+        distance: 1,
+        limit: true,
+        offset_left: 0,
+        autoscroll: true
+        // ,drag: function(e){},
+        // start : function(e, ui){},
+        // stop : function(e){}
+    };
+
+    var $window = $(window);
+    var isTouch = !!('ontouchstart' in window);
+    var pointer_events = {
+        start: isTouch ? 'touchstart' : 'mousedown.draggable',
+        move: isTouch ? 'touchmove' : 'mousemove.draggable',
+        end: isTouch ? 'touchend' : 'mouseup.draggable'
+    };
+
+    /**
+    * Basic drag implementation for DOM elements inside a container.
+    * Provide start/stop/drag callbacks.
+    *
+    * @class Draggable
+    * @param {HTMLElement} el The HTMLelement that contains all the widgets
+    *  to be dragged.
+    * @param {Object} [options] An Object with all options you want to
+    *        overwrite:
+    *    @param {HTMLElement|String} [options.items] Define who will
+    *     be the draggable items. Can be a CSS Selector String or a
+    *     collection of HTMLElements.
+    *    @param {Number} [options.distance] Distance in pixels after mousedown
+    *     the mouse must move before dragging should start.
+    *    @param {Boolean} [options.limit] Constrains dragging to the width of
+    *     the container
+    *    @param {offset_left} [options.offset_left] Offset added to the item
+    *     that is being dragged.
+    *    @param {Number} [options.drag] Executes a callback when the mouse is
+    *     moved during the dragging.
+    *    @param {Number} [options.start] Executes a callback when the drag
+    *     starts.
+    *    @param {Number} [options.stop] Executes a callback when the drag stops.
+    * @return {Object} Returns `el`.
+    * @constructor
+    */
+    function Draggable(el, options) {
+      this.options = $.extend({}, defaults, options);
+      this.$body = $(document.body);
+      this.$container = $(el);
+      this.$dragitems = $(this.options.items, this.$container);
+      this.is_dragging = false;
+      this.player_min_left = 0 + this.options.offset_left;
+      this.init();
+    }
+
+    var fn = Draggable.prototype;
+
+    fn.init = function() {
+        this.calculate_positions();
+        this.$container.css('position', 'relative');
+        this.enable();
+
+        $(window).bind('resize',
+            throttle($.proxy(this.calculate_positions, this), 200));
+    };
+
+
+    fn.get_actual_pos = function($el) {
+        var pos = $el.position();
+        return pos;
+    };
+
+
+    fn.get_mouse_pos = function(e) {
+        if (isTouch) {
+            var oe = e.originalEvent;
+            e = oe.touches.length ? oe.touches[0] : oe.changedTouches[0];
+        };
+
+        return {
+            left: e.clientX,
+            top: e.clientY
+        };
+    };
+
+
+    fn.get_offset = function(e) {
+        e.preventDefault();
+        var mouse_actual_pos = this.get_mouse_pos(e);
+        var diff_x = Math.round(
+            mouse_actual_pos.left - this.mouse_init_pos.left);
+        var diff_y = Math.round(mouse_actual_pos.top - this.mouse_init_pos.top);
+
+        var left = Math.round(this.el_init_offset.left + diff_x - this.baseX);
+        var top = Math.round(
+            this.el_init_offset.top + diff_y - this.baseY + this.scrollOffset);
+
+        if (this.options.limit) {
+            if (left > this.player_max_left) {
+                left = this.player_max_left;
+            }else if(left < this.player_min_left) {
+                left = this.player_min_left;
+            }
+        }
+
+        return {
+            left: left,
+            top: top,
+            mouse_left: mouse_actual_pos.left,
+            mouse_top: mouse_actual_pos.top
+        };
+    };
+
+
+    fn.manage_scroll = function(offset) {
+        /* scroll document */
+        var nextScrollTop;
+        var scrollTop = $window.scrollTop();
+        var min_window_y = scrollTop;
+        var max_window_y = min_window_y + this.window_height;
+
+        var mouse_down_zone = max_window_y - 50;
+        var mouse_up_zone = min_window_y + 50;
+
+        var abs_mouse_left = offset.mouse_left;
+        var abs_mouse_top = min_window_y + offset.mouse_top;
+
+        var max_player_y = (this.doc_height - this.window_height +
+            this.player_height);
+
+        if (abs_mouse_top >= mouse_down_zone) {
+            nextScrollTop = scrollTop + 30;
+            if (nextScrollTop < max_player_y) {
+                $window.scrollTop(nextScrollTop);
+                this.scrollOffset = this.scrollOffset + 30;
+            }
+        };
+
+        if (abs_mouse_top <= mouse_up_zone) {
+            nextScrollTop = scrollTop - 30;
+            if (nextScrollTop > 0) {
+                $window.scrollTop(nextScrollTop);
+                this.scrollOffset = this.scrollOffset - 30;
+            }
+        };
+    }
+
+
+    fn.calculate_positions = function(e) {
+        this.window_height = $window.height();
+    }
+
+
+    fn.drag_handler = function(e) {
+        var node = e.target.nodeName;
+
+        if (e.which !== 1 && !isTouch) {
+            return;
+        }
+
+        if (node === 'INPUT' || node === 'TEXTAREA' || node === 'SELECT' ||
+            node === 'BUTTON') {
+            return;
+        };
+
+        var self = this;
+        var first = true;
+        this.$player = $(e.currentTarget);
+
+        this.el_init_pos = this.get_actual_pos(this.$player);
+        this.mouse_init_pos = this.get_mouse_pos(e);
+        this.offsetY = this.mouse_init_pos.top - this.el_init_pos.top;
+
+        this.$body.on(pointer_events.move, function(mme){
+            var mouse_actual_pos = self.get_mouse_pos(mme);
+            var diff_x = Math.abs(
+                mouse_actual_pos.left - self.mouse_init_pos.left);
+            var diff_y = Math.abs(
+                mouse_actual_pos.top - self.mouse_init_pos.top);
+            if (!(diff_x > self.options.distance ||
+                diff_y > self.options.distance)
+            ) {
+                return false;
+            }
+
+            if (first) {
+                first = false;
+                self.on_dragstart.call(self, mme);
+                return false;
+            }
+
+            if (self.is_dragging == true) {
+                self.on_dragmove.call(self, mme);
+            }
+
+            return false;
+        });
+    };
+
+
+    fn.on_dragstart = function(e) {
+        e.preventDefault();
+        this.drag_start = true;
+        this.is_dragging = true;
+        var offset = this.$container.offset();
+        this.baseX = Math.round(offset.left);
+        this.baseY = Math.round(offset.top);
+        this.doc_height = $(document).height();
+
+        if (this.options.helper === 'clone') {
+            this.$helper = this.$player.clone()
+                .appendTo(this.$container).addClass('helper');
+            this.helper = true;
+        }else{
+            this.helper = false;
+        }
+        this.scrollOffset = 0;
+        this.el_init_offset = this.$player.offset();
+        this.player_width = this.$player.width();
+        this.player_height = this.$player.height();
+        this.player_max_left = (this.$container.width() - this.player_width +
+            this.options.offset_left);
+
+        if (this.options.start) {
+            this.options.start.call(this.$player, e, {
+                helper: this.helper ? this.$helper : this.$player
+            });
+        }
+        return false;
+    };
+
+
+    fn.on_dragmove = function(e) {
+        var offset = this.get_offset(e);
+
+        this.options.autoscroll && this.manage_scroll(offset);
+
+        (this.helper ? this.$helper : this.$player).css({
+            'position': 'absolute',
+            'left' : offset.left,
+            'top' : offset.top
+        });
+
+        var ui = {
+            'position': {
+                'left': offset.left,
+                'top': offset.top
+            }
+        };
+
+        if (this.options.drag) {
+            this.options.drag.call(this.$player, e, ui);
+        }
+        return false;
+    };
+
+
+    fn.on_dragstop = function(e) {
+        var offset = this.get_offset(e);
+        this.drag_start = false;
+
+        var ui = {
+            'position': {
+                'left': offset.left,
+                'top': offset.top
+            }
+        };
+
+        if (this.options.stop) {
+            this.options.stop.call(this.$player, e, ui);
+        }
+
+        if (this.helper) {
+            this.$helper.remove();
+        }
+
+        return false;
+    };
+
+
+    fn.enable = function(){
+        this.$container.on(pointer_events.start, this.options.items, $.proxy(
+            this.drag_handler, this));
+
+        this.$body.on(pointer_events.end, $.proxy(function(e) {
+            this.is_dragging = false;
+            this.$body.off(pointer_events.move);
+            if (this.drag_start) {
+                this.on_dragstop(e);
+            }
+        }, this));
+    };
+
+
+    fn.disable = function(){
+        this.$container.off(pointer_events.start);
+        this.$body.off(pointer_events.end);
+    };
+
+
+    fn.destroy = function(){
+        this.disable();
+        $.removeData(this.$container, 'draggable');
+    };
+
+
+    //jQuery adapter
+    $.fn.drag = function ( options ) {
+        return this.each(function () {
+            if (!$.data(this, 'drag')) {
+                $.data(this, 'drag', new Draggable( this, options ));
+            }
+        });
+    };
+
+
+}(jQuery, window, document));
diff --git a/templates/project/assets/javascripts/gridster/jquery.gridster.js b/templates/project/assets/javascripts/gridster/jquery.gridster.js
new file mode 100755
index 0000000..9099177
--- /dev/null
+++ b/templates/project/assets/javascripts/gridster/jquery.gridster.js
@@ -0,0 +1,2890 @@
+/*! gridster.js - v0.1.0 - 2012-08-14
+* http://gridster.net/
+* Copyright (c) 2012 ducksboard; Licensed MIT */
+
+;(function($, window, document, undefined){
+    /**
+    * Creates objects with coordinates (x1, y1, x2, y2, cx, cy, width, height)
+    * to simulate DOM elements on the screen.
+    * Coords is used by Gridster to create a faux grid with any DOM element can
+    * collide.
+    *
+    * @class Coords
+    * @param {HTMLElement|Object} obj The jQuery HTMLElement or a object with: left,
+    * top, width and height properties.
+    * @return {Object} Coords instance.
+    * @constructor
+    */
+    function Coords(obj) {
+        if (obj[0] && $.isPlainObject(obj[0])) {
+            this.data = obj[0];
+        }else {
+            this.el = obj;
+        }
+
+        this.isCoords = true;
+        this.coords = {};
+        this.init();
+        return this;
+    }
+
+
+    var fn = Coords.prototype;
+
+
+    fn.init = function(){
+        this.set();
+        this.original_coords = this.get();
+    };
+
+
+    fn.set = function(update, not_update_offsets) {
+        var el = this.el;
+
+        if (el && !update) {
+            this.data = el.offset();
+            this.data.width = el.width();
+            this.data.height = el.height();
+        }
+
+        if (el && update && !not_update_offsets) {
+            var offset = el.offset();
+            this.data.top = offset.top;
+            this.data.left = offset.left;
+        }
+
+        var d = this.data;
+
+        this.coords.x1 = d.left;
+        this.coords.y1 = d.top;
+        this.coords.x2 = d.left + d.width;
+        this.coords.y2 = d.top + d.height;
+        this.coords.cx = d.left + (d.width / 2);
+        this.coords.cy = d.top + (d.height / 2);
+        this.coords.width  = d.width;
+        this.coords.height = d.height;
+        this.coords.el  = el || false ;
+
+        return this;
+    };
+
+
+    fn.update = function(data){
+        if (!data && !this.el) {
+            return this;
+        }
+
+        if (data) {
+            var new_data = $.extend({}, this.data, data);
+            this.data = new_data;
+            return this.set(true, true);
+        }
+
+        this.set(true);
+        return this;
+    };
+
+
+    fn.get = function(){
+        return this.coords;
+    };
+
+
+    //jQuery adapter
+    $.fn.coords = function() {
+        if (this.data('coords') ) {
+            return this.data('coords');
+        }
+
+        var ins = new Coords(this, arguments[0]);
+        this.data('coords', ins);
+        return ins;
+    };
+
+}(jQuery, window, document));
+
+;(function($, window, document, undefined){
+
+    var defaults = {
+        colliders_context: document.body
+        // ,on_overlap: function(collider_data){},
+        // on_overlap_start : function(collider_data){},
+        // on_overlap_stop : function(collider_data){}
+    };
+
+
+    /**
+    * Detects collisions between a DOM element against other DOM elements or
+    * Coords objects.
+    *
+    * @class Collision
+    * @uses Coords
+    * @param {HTMLElement} el The jQuery wrapped HTMLElement.
+    * @param {HTMLElement|Array} colliders Can be a jQuery collection
+    *  of HTMLElements or an Array of Coords instances.
+    * @param {Object} [options] An Object with all options you want to
+    *        overwrite:
+    *   @param {Function} [options.on_overlap_start] Executes a function the first
+    *    time each `collider ` is overlapped.
+    *   @param {Function} [options.on_overlap_stop] Executes a function when a
+    *    `collider` is no longer collided.
+    *   @param {Function} [options.on_overlap] Executes a function when the
+    * mouse is moved during the collision.
+    * @return {Object} Collision instance.
+    * @constructor
+    */
+    function Collision(el, colliders, options) {
+        this.options = $.extend(defaults, options);
+        this.$element = el;
+        this.last_colliders = [];
+        this.last_colliders_coords = [];
+        if (typeof colliders === 'string' || colliders instanceof jQuery) {
+            this.$colliders = $(colliders,
+                 this.options.colliders_context).not(this.$element);
+        }else{
+            this.colliders = $(colliders);
+        }
+
+        this.init();
+    }
+
+
+    var fn = Collision.prototype;
+
+
+    fn.init = function() {
+        this.find_collisions();
+    };
+
+
+    fn.overlaps = function(a, b) {
+        var x = false;
+        var y = false;
+
+        if ((b.x1 >= a.x1 && b.x1 <= a.x2) ||
+            (b.x2 >= a.x1 && b.x2 <= a.x2) ||
+            (a.x1 >= b.x1 && a.x2 <= b.x2)
+        ) { x = true; }
+
+        if ((b.y1 >= a.y1 && b.y1 <= a.y2) ||
+            (b.y2 >= a.y1 && b.y2 <= a.y2) ||
+            (a.y1 >= b.y1 && a.y2 <= b.y2)
+        ) { y = true; }
+
+        return (x && y);
+    };
+
+
+    fn.detect_overlapping_region = function(a, b){
+        var regionX = '';
+        var regionY = '';
+
+        if (a.y1 > b.cy && a.y1 < b.y2) { regionX = 'N'; }
+        if (a.y2 > b.y1 && a.y2 < b.cy) { regionX = 'S'; }
+        if (a.x1 > b.cx && a.x1 < b.x2) { regionY = 'W'; }
+        if (a.x2 > b.x1 && a.x2 < b.cx) { regionY = 'E'; }
+
+        return (regionX + regionY) || 'C';
+    };
+
+
+    fn.calculate_overlapped_area_coords = function(a, b){
+        var x1 = Math.max(a.x1, b.x1);
+        var y1 = Math.max(a.y1, b.y1);
+        var x2 = Math.min(a.x2, b.x2);
+        var y2 = Math.min(a.y2, b.y2);
+
+        return $({
+            left: x1,
+            top: y1,
+             width : (x2 - x1),
+            height: (y2 - y1)
+          }).coords().get();
+    };
+
+
+    fn.calculate_overlapped_area = function(coords){
+        return (coords.width * coords.height);
+    };
+
+
+    fn.manage_colliders_start_stop = function(new_colliders_coords, start_callback, stop_callback){
+        var last = this.last_colliders_coords;
+
+        for (var i = 0, il = last.length; i < il; i++) {
+            if ($.inArray(last[i], new_colliders_coords) === -1) {
+                start_callback.call(this, last[i]);
+            }
+        }
+
+        for (var j = 0, jl = new_colliders_coords.length; j < jl; j++) {
+            if ($.inArray(new_colliders_coords[j], last) === -1) {
+                stop_callback.call(this, new_colliders_coords[j]);
+            }
+
+        }
+    };
+
+
+    fn.find_collisions = function(player_data_coords){
+        var self = this;
+        var colliders_coords = [];
+        var colliders_data = [];
+        var $colliders = (this.colliders || this.$colliders);
+        var count = $colliders.length;
+        var player_coords = self.$element.coords()
+                             .update(player_data_coords || false).get();
+
+        while(count--){
+          var $collider = self.$colliders ?
+                           $($colliders[count]) : $colliders[count];
+          var $collider_coords_ins = ($collider.isCoords) ?
+                  $collider : $collider.coords();
+          var collider_coords = $collider_coords_ins.get();
+          var overlaps = self.overlaps(player_coords, collider_coords);
+
+          if (!overlaps) {
+            continue;
+          }
+
+          var region = self.detect_overlapping_region(
+              player_coords, collider_coords);
+
+            //todo: make this an option
+            if (region === 'C'){
+                var area_coords = self.calculate_overlapped_area_coords(
+                    player_coords, collider_coords);
+                var area = self.calculate_overlapped_area(area_coords);
+                var collider_data = {
+                    area: area,
+                    area_coords : area_coords,
+                    region: region,
+                    coords: collider_coords,
+                    player_coords: player_coords,
+                    el: $collider
+                };
+
+                if (self.options.on_overlap) {
+                    self.options.on_overlap.call(this, collider_data);
+                }
+                colliders_coords.push($collider_coords_ins);
+                colliders_data.push(collider_data);
+            }
+        }
+
+        if (self.options.on_overlap_stop || self.options.on_overlap_start) {
+            this.manage_colliders_start_stop(colliders_coords,
+                self.options.on_overlap_stop, self.options.on_overlap_start);
+        }
+
+        this.last_colliders_coords = colliders_coords;
+
+        return colliders_data;
+    };
+
+
+    fn.get_closest_colliders = function(player_data_coords){
+        var colliders = this.find_collisions(player_data_coords);
+        var min_area = 100;
+        colliders.sort(function(a, b){
+            if (a.area <= min_area) {
+              return 1;
+            }
+
+            /* if colliders are being overlapped by the "C" (center) region,
+             * we have to set a lower index in the array to which they are placed
+             * above in the grid. */
+            if (a.region === 'C' && b.region === 'C') {
+                if (a.coords.y1 < b.coords.y1 || a.coords.x1 < b.coords.x1) {
+                    return - 1;
+                }else{
+                    return 1;
+                }
+            }
+
+            if (a.area < b.area){
+                return 1;
+            }
+
+            return 1;
+        });
+        return colliders;
+    };
+
+
+    //jQuery adapter
+    $.fn.collision = function(collider, options) {
+          return new Collision( this, collider, options );
+    };
+
+
+}(jQuery, window, document));
+
+;(function(window, undefined) {
+    /* Debounce and throttle functions taken from underscore.js */
+    window.debounce = function(func, wait, immediate) {
+        var timeout;
+        return function() {
+          var context = this, args = arguments;
+          var later = function() {
+            timeout = null;
+            if (!immediate) func.apply(context, args);
+          };
+          if (immediate && !timeout) func.apply(context, args);
+          clearTimeout(timeout);
+          timeout = setTimeout(later, wait);
+        };
+    };
+
+
+    window.throttle = function(func, wait) {
+        var context, args, timeout, throttling, more, result;
+        var whenDone = debounce(
+            function(){ more = throttling = false; }, wait);
+        return function() {
+          context = this; args = arguments;
+          var later = function() {
+            timeout = null;
+            if (more) func.apply(context, args);
+            whenDone();
+          };
+          if (!timeout) timeout = setTimeout(later, wait);
+          if (throttling) {
+            more = true;
+          } else {
+            result = func.apply(context, args);
+          }
+          whenDone();
+          throttling = true;
+          return result;
+        };
+    };
+
+})(window);
+
+;(function($, window, document, undefined){
+
+    var defaults = {
+        items: '.gs_w',
+        distance: 1,
+        limit: true,
+        offset_left: 0,
+        autoscroll: true
+        // ,drag: function(e){},
+        // start : function(e, ui){},
+        // stop : function(e){}
+    };
+
+    var $window = $(window);
+    var isTouch = !!('ontouchstart' in window);
+    var pointer_events = {
+        start: isTouch ? 'touchstart' : 'mousedown.draggable',
+        move: isTouch ? 'touchmove' : 'mousemove.draggable',
+        end: isTouch ? 'touchend' : 'mouseup.draggable'
+    };
+
+    /**
+    * Basic drag implementation for DOM elements inside a container.
+    * Provide start/stop/drag callbacks.
+    *
+    * @class Draggable
+    * @param {HTMLElement} el The HTMLelement that contains all the widgets
+    *  to be dragged.
+    * @param {Object} [options] An Object with all options you want to
+    *        overwrite:
+    *    @param {HTMLElement|String} [options.items] Define who will
+    *     be the draggable items. Can be a CSS Selector String or a
+    *     collection of HTMLElements.
+    *    @param {Number} [options.distance] Distance in pixels after mousedown
+    *     the mouse must move before dragging should start.
+    *    @param {Boolean} [options.limit] Constrains dragging to the width of
+    *     the container
+    *    @param {offset_left} [options.offset_left] Offset added to the item
+    *     that is being dragged.
+    *    @param {Number} [options.drag] Executes a callback when the mouse is
+    *     moved during the dragging.
+    *    @param {Number} [options.start] Executes a callback when the drag
+    *     starts.
+    *    @param {Number} [options.stop] Executes a callback when the drag stops.
+    * @return {Object} Returns `el`.
+    * @constructor
+    */
+    function Draggable(el, options) {
+      this.options = $.extend({}, defaults, options);
+      this.$body = $(document.body);
+      this.$container = $(el);
+      this.$dragitems = $(this.options.items, this.$container);
+      this.is_dragging = false;
+      this.player_min_left = 0 + this.options.offset_left;
+      this.init();
+    }
+
+    var fn = Draggable.prototype;
+
+    fn.init = function() {
+        this.calculate_positions();
+        this.$container.css('position', 'relative');
+        this.enable();
+
+        $(window).bind('resize',
+            throttle($.proxy(this.calculate_positions, this), 200));
+    };
+
+
+    fn.get_actual_pos = function($el) {
+        var pos = $el.position();
+        return pos;
+    };
+
+
+    fn.get_mouse_pos = function(e) {
+        if (isTouch) {
+            var oe = e.originalEvent;
+            e = oe.touches.length ? oe.touches[0] : oe.changedTouches[0];
+        };
+
+        return {
+            left: e.clientX,
+            top: e.clientY
+        };
+    };
+
+
+    fn.get_offset = function(e) {
+        e.preventDefault();
+        var mouse_actual_pos = this.get_mouse_pos(e);
+        var diff_x = Math.round(
+            mouse_actual_pos.left - this.mouse_init_pos.left);
+        var diff_y = Math.round(mouse_actual_pos.top - this.mouse_init_pos.top);
+
+        var left = Math.round(this.el_init_offset.left + diff_x - this.baseX);
+        var top = Math.round(
+            this.el_init_offset.top + diff_y - this.baseY + this.scrollOffset);
+
+        if (this.options.limit) {
+            if (left > this.player_max_left) {
+                left = this.player_max_left;
+            }else if(left < this.player_min_left) {
+                left = this.player_min_left;
+            }
+        }
+
+        return {
+            left: left,
+            top: top,
+            mouse_left: mouse_actual_pos.left,
+            mouse_top: mouse_actual_pos.top
+        };
+    };
+
+
+    fn.manage_scroll = function(offset) {
+        /* scroll document */
+        var nextScrollTop;
+        var scrollTop = $window.scrollTop();
+        var min_window_y = scrollTop;
+        var max_window_y = min_window_y + this.window_height;
+
+        var mouse_down_zone = max_window_y - 50;
+        var mouse_up_zone = min_window_y + 50;
+
+        var abs_mouse_left = offset.mouse_left;
+        var abs_mouse_top = min_window_y + offset.mouse_top;
+
+        var max_player_y = (this.doc_height - this.window_height +
+            this.player_height);
+
+        if (abs_mouse_top >= mouse_down_zone) {
+            nextScrollTop = scrollTop + 30;
+            if (nextScrollTop < max_player_y) {
+                $window.scrollTop(nextScrollTop);
+                this.scrollOffset = this.scrollOffset + 30;
+            }
+        };
+
+        if (abs_mouse_top <= mouse_up_zone) {
+            nextScrollTop = scrollTop - 30;
+            if (nextScrollTop > 0) {
+                $window.scrollTop(nextScrollTop);
+                this.scrollOffset = this.scrollOffset - 30;
+            }
+        };
+    }
+
+
+    fn.calculate_positions = function(e) {
+        this.window_height = $window.height();
+    }
+
+
+    fn.drag_handler = function(e) {
+        var node = e.target.nodeName;
+
+        if (e.which !== 1 && !isTouch) {
+            return;
+        }
+
+        if (node === 'INPUT' || node === 'TEXTAREA' || node === 'SELECT' ||
+            node === 'BUTTON') {
+            return;
+        };
+
+        var self = this;
+        var first = true;
+        this.$player = $(e.currentTarget);
+
+        this.el_init_pos = this.get_actual_pos(this.$player);
+        this.mouse_init_pos = this.get_mouse_pos(e);
+        this.offsetY = this.mouse_init_pos.top - this.el_init_pos.top;
+
+        this.$body.on(pointer_events.move, function(mme){
+            var mouse_actual_pos = self.get_mouse_pos(mme);
+            var diff_x = Math.abs(
+                mouse_actual_pos.left - self.mouse_init_pos.left);
+            var diff_y = Math.abs(
+                mouse_actual_pos.top - self.mouse_init_pos.top);
+            if (!(diff_x > self.options.distance ||
+                diff_y > self.options.distance)
+            ) {
+                return false;
+            }
+
+            if (first) {
+                first = false;
+                self.on_dragstart.call(self, mme);
+                return false;
+            }
+
+            if (self.is_dragging == true) {
+                self.on_dragmove.call(self, mme);
+            }
+
+            return false;
+        });
+
+        return false;
+    };
+
+
+    fn.on_dragstart = function(e) {
+        e.preventDefault();
+        this.drag_start = true;
+        this.is_dragging = true;
+        var offset = this.$container.offset();
+        this.baseX = Math.round(offset.left);
+        this.baseY = Math.round(offset.top);
+        this.doc_height = $(document).height();
+
+        if (this.options.helper === 'clone') {
+            this.$helper = this.$player.clone()
+                .appendTo(this.$container).addClass('helper');
+            this.helper = true;
+        }else{
+            this.helper = false;
+        }
+        this.scrollOffset = 0;
+        this.el_init_offset = this.$player.offset();
+        this.player_width = this.$player.width();
+        this.player_height = this.$player.height();
+        this.player_max_left = (this.$container.width() - this.player_width +
+            this.options.offset_left);
+
+        if (this.options.start) {
+            this.options.start.call(this.$player, e, {
+                helper: this.helper ? this.$helper : this.$player
+            });
+        }
+        return false;
+    };
+
+
+    fn.on_dragmove = function(e) {
+        var offset = this.get_offset(e);
+
+        this.options.autoscroll && this.manage_scroll(offset);
+
+        (this.helper ? this.$helper : this.$player).css({
+            'position': 'absolute',
+            'left' : offset.left,
+            'top' : offset.top
+        });
+
+        var ui = {
+            'position': {
+                'left': offset.left,
+                'top': offset.top
+            }
+        };
+
+        if (this.options.drag) {
+            this.options.drag.call(this.$player, e, ui);
+        }
+        return false;
+    };
+
+
+    fn.on_dragstop = function(e) {
+        var offset = this.get_offset(e);
+        this.drag_start = false;
+
+        var ui = {
+            'position': {
+                'left': offset.left,
+                'top': offset.top
+            }
+        };
+
+        if (this.options.stop) {
+            this.options.stop.call(this.$player, e, ui);
+        }
+
+        if (this.helper) {
+            this.$helper.remove();
+        }
+
+        return false;
+    };
+
+    fn.on_select_start = function(e) {
+        return false;
+    }
+
+
+    fn.enable = function(){
+        this.$container.on('selectstart', this.on_select_start);
+
+        this.$container.on(pointer_events.start, this.options.items, $.proxy(
+            this.drag_handler, this));
+
+        this.$body.on(pointer_events.end, $.proxy(function(e) {
+            this.is_dragging = false;
+            this.$body.off(pointer_events.move);
+            if (this.drag_start) {
+                this.on_dragstop(e);
+            }
+        }, this));
+    };
+
+
+    fn.disable = function(){
+        this.$container.off(pointer_events.start);
+        this.$body.off(pointer_events.end);
+        this.$container.off('selectstart', this.on_select_start);
+    };
+
+
+    fn.destroy = function(){
+        this.disable();
+        $.removeData(this.$container, 'drag');
+    };
+
+
+    //jQuery adapter
+    $.fn.drag = function ( options ) {
+        return this.each(function () {
+            if (!$.data(this, 'drag')) {
+                $.data(this, 'drag', new Draggable( this, options ));
+            }
+        });
+    };
+
+
+}(jQuery, window, document));
+
+;(function($, window, document, undefined) {
+
+    var defaults = {
+        widget_selector: '> li',
+        widget_margins: [10, 10],
+        widget_base_dimensions: [400, 225],
+        extra_rows: 0,
+        extra_cols: 0,
+        min_cols: 1,
+        min_rows: 15,
+        max_size_x: 6,
+        max_size_y: 6,
+        autogenerate_stylesheet: true,
+        avoid_overlapped_widgets: true,
+        serialize_params: function($w, wgd) {
+            return {
+                col: wgd.col,
+                row: wgd.row
+            };
+        },
+        collision: {},
+        draggable: {
+            distance: 4
+        }
+    };
+
+
+    /**
+    * @class Gridster
+    * @uses Draggable
+    * @uses Collision
+    * @param {HTMLElement} el The HTMLelement that contains all the widgets.
+    * @param {Object} [options] An Object with all options you want to
+    *        overwrite:
+    *    @param {HTMLElement|String} [options.widget_selector] Define who will
+    *     be the draggable widgets. Can be a CSS Selector String or a
+    *     collection of HTMLElements
+    *    @param {Array} [options.widget_margins] Margin between widgets.
+    *     The first index for the horizontal margin (left, right) and
+    *     the second for the vertical margin (top, bottom).
+    *    @param {Array} [options.widget_base_dimensions] Base widget dimensions
+    *     in pixels. The first index for the width and the second for the
+    *     height.
+    *    @param {Number} [options.extra_cols] Add more columns in addition to
+    *     those that have been calculated.
+    *    @param {Number} [options.extra_rows] Add more rows in addition to
+    *     those that have been calculated.
+    *    @param {Number} [options.min_cols] The minimum required columns.
+    *    @param {Number} [options.min_rows] The minimum required rows.
+    *    @param {Number} [options.max_size_x] The maximum number of columns
+    *     that a widget can span.
+    *    @param {Number} [options.max_size_y] The maximum number of rows
+    *     that a widget can span.
+    *    @param {Boolean} [options.autogenerate_stylesheet] If true, all the
+    *     CSS required to position all widgets in their respective columns
+    *     and rows will be generated automatically and injected to the
+    *     `<head>` of the document. You can set this to false, and write
+    *     your own CSS targeting rows and cols via data-attributes like so:
+    *     `[data-col="1"] { left: 10px; }`
+    *    @param {Boolean} [options.avoid_overlapped_widgets] Avoid that widgets loaded
+    *     from the DOM can be overlapped. It is helpful if the positions were
+    *     bad stored in the database or if there was any conflict.
+    *    @param {Function} [options.serialize_params] Return the data you want
+    *     for each widget in the serialization. Two arguments are passed:
+    *     `$w`: the jQuery wrapped HTMLElement, and `wgd`: the grid
+    *     coords object (`col`, `row`, `size_x`, `size_y`).
+    *    @param {Object} [options.collision] An Object with all options for
+    *     Collision class you want to overwrite. See Collision docs for
+    *     more info.
+    *    @param {Object} [options.draggable] An Object with all options for
+    *     Draggable class you want to overwrite. See Draggable docs for more
+    *     info.
+    *
+    * @constructor
+    */
+    function Gridster(el, options) {
+      this.options = $.extend(true, defaults, options);
+      this.$el = $(el);
+      this.$wrapper = this.$el.parent();
+      this.$widgets = $(this.options.widget_selector, this.$el).addClass('gs_w');
+      this.widgets = [];
+      this.$changed = $([]);
+      this.wrapper_width = this.$wrapper.width();
+      this.min_widget_width = (this.options.widget_margins[0] * 2) +
+        this.options.widget_base_dimensions[0];
+      this.min_widget_height = (this.options.widget_margins[1] * 2) +
+        this.options.widget_base_dimensions[1];
+      this.init();
+    }
+
+    Gridster.generated_stylesheets = [];
+
+    var fn = Gridster.prototype;
+
+    fn.init = function() {
+      this.generate_grid_and_stylesheet();
+      this.get_widgets_from_DOM();
+      this.set_dom_grid_height();
+      this.$wrapper.addClass('ready');
+      this.draggable();
+
+      $(window).bind(
+        'resize', throttle($.proxy(this.recalculate_faux_grid, this), 200));
+    };
+
+
+    /**
+    * Disables dragging.
+    *
+    * @method disable
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.disable = function() {
+        this.$wrapper.find('.player-revert').removeClass('player-revert');
+        this.drag_api.disable();
+        return this;
+    };
+
+
+    /**
+    * Enables dragging.
+    *
+    * @method enable
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.enable = function() {
+        this.drag_api.enable();
+        return this;
+    };
+
+
+    /**
+    * Add a new widget to the grid.
+    *
+    * @method add_widget
+    * @param {String} html The string representing the HTML of the widget.
+    * @param {Number} size_x The nº of rows the widget occupies horizontally.
+    * @param {Number} size_y The nº of columns the widget occupies vertically.
+    * @return {HTMLElement} Returns the jQuery wrapped HTMLElement representing.
+    *  the widget that was just created.
+    */
+    fn.add_widget = function(html, size_x, size_y) {
+        var next_pos = this.next_position(size_x, size_y);
+
+        var $w = $(html).attr({
+                'data-col': next_pos.col,
+                'data-row': next_pos.row,
+                'data-sizex' : next_pos.size_x,
+                'data-sizey' : next_pos.size_y
+            }).addClass('gs_w').appendTo(this.$el).hide();
+
+        this.$widgets = this.$widgets.add($w);
+
+        this.register_widget($w);
+
+        this.set_dom_grid_height();
+
+        return $w.fadeIn();
+    };
+
+
+    /**
+    * Get the most left column below to add a new widget.
+    *
+    * @method next_position
+    * @param {Number} size_x The nº of rows the widget occupies horizontally.
+    * @param {Number} size_y The nº of columns the widget occupies vertically.
+    * @return {Object} Returns a grid coords object representing the future
+    *  widget coords.
+    */
+    fn.next_position = function(size_x, size_y) {
+        size_x || (size_x = 1);
+        size_y || (size_y = 1);
+        var ga = this.gridmap;
+        var cols_l = ga.length;
+        var valid_pos = [];
+
+        for (var c = 1; c < cols_l; c++) {
+            var rows_l = ga[c].length;
+            for (var r = 1; r <= rows_l; r++) {
+                var can_move_to = this.can_move_to({
+                    size_x: size_x,
+                    size_y: size_y
+                }, c, r);
+
+                if (can_move_to) {
+                    valid_pos.push({
+                        col: c,
+                        row: r,
+                        size_y: size_y,
+                        size_x: size_x
+                    });
+                }
+            }
+        }
+
+        if (valid_pos.length) {
+            return this.sort_by_row_and_col_asc(valid_pos)[0];
+        }
+        return false;
+    };
+
+
+    /**
+    * Remove a widget from the grid.
+    *
+    * @method remove_widget
+    * @param {HTMLElement} el The jQuery wrapped HTMLElement you want to remove.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.remove_widget = function(el, callback) {
+        var $el = el instanceof jQuery ? el : $(el);
+        var wgd = $el.coords().grid;
+
+        this.cells_occupied_by_placeholder = {};
+        this.$widgets = this.$widgets.not($el);
+
+        var $nexts = this.widgets_below($el);
+
+        this.remove_from_gridmap(wgd);
+
+        $el.fadeOut($.proxy(function() {
+            $el.remove();
+
+            $nexts.each($.proxy(function(i, widget) {
+                this.move_widget_up( $(widget), wgd.size_y );
+            }, this));
+
+            this.set_dom_grid_height();
+
+            if (callback) {
+                callback.call(this, el);
+            }
+        }, this));
+    };
+
+
+    /**
+    * Returns a serialized array of the widgets in the grid.
+    *
+    * @method serialize
+    * @param {HTMLElement} [$widgets] The collection of jQuery wrapped
+    *  HTMLElements you want to serialize. If no argument is passed all widgets
+    *  will be serialized.
+    * @return {Array} Returns an Array of Objects with the data specified in
+    *  the serialize_params option.
+    */
+    fn.serialize = function($widgets) {
+        $widgets || ($widgets = this.$widgets);
+        var result = [];
+        $widgets.each($.proxy(function(i, widget) {
+            result.push(this.options.serialize_params(
+                $(widget), $(widget).coords().grid ) );
+        }, this));
+
+        return result;
+    };
+
+
+    /**
+    * Returns a serialized array of the widgets that have changed their
+    *  position.
+    *
+    * @method serialize_changed
+    * @return {Array} Returns an Array of Objects with the data specified in
+    *  the serialize_params option.
+    */
+    fn.serialize_changed = function() {
+        return this.serialize(this.$changed);
+    };
+
+
+    /**
+    * Creates the grid coords object representing the widget a add it to the
+    * mapped array of positions.
+    *
+    * @method register_widget
+    * @return {Array} Returns the instance of the Gridster class.
+    */
+    fn.register_widget = function($el) {
+
+        var wgd = {
+            'col': parseInt($el.attr('data-col'), 10),
+            'row': parseInt($el.attr('data-row'), 10),
+            'size_x': parseInt($el.attr('data-sizex'), 10),
+            'size_y': parseInt($el.attr('data-sizey'), 10),
+            'el': $el
+        };
+
+        if (this.options.avoid_overlapped_widgets &&
+            !this.can_move_to(
+             {size_x: wgd.size_x, size_y: wgd.size_y}, wgd.col, wgd.row)
+        ) {
+            wgd = this.next_position(wgd.size_x, wgd.size_y);
+            wgd.el = $el;
+            $el.attr({
+                'data-col': wgd.col,
+                'data-row': wgd.row,
+                'data-sizex': wgd.size_x,
+                'data-sizey': wgd.size_y
+            });
+        }
+
+        // attach Coord object to player data-coord attribute
+        $el.data('coords', $el.coords());
+
+        // Extend Coord object with grid position info
+        $el.data('coords').grid = wgd;
+
+        this.add_to_gridmap(wgd, $el);
+        this.widgets.push($el);
+        return this;
+    };
+
+
+    /**
+    * Update in the mapped array of positions the value of cells represented by
+    * the grid coords object passed in the `grid_data` param.
+    *
+    * @param {Object} grid_data The grid coords object representing the cells
+    *  to update in the mapped array.
+    * @param {HTMLElement|Boolean} value Pass `false` or the jQuery wrapped
+    *  HTMLElement, depends if you want to delete an existing position or add
+    *  a new one.
+    * @method update_widget_position
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.update_widget_position = function(grid_data, value) {
+        this.for_each_cell_occupied(grid_data, function(col, row) {
+            if (!this.gridmap[col]) { return this; }
+            this.gridmap[col][row] = value;
+        });
+        return this;
+    };
+
+
+    /**
+    * Remove a widget from the mapped array of positions.
+    *
+    * @method remove_from_gridmap
+    * @param {Object} grid_data The grid coords object representing the cells
+    *  to update in the mapped array.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.remove_from_gridmap = function(grid_data) {
+        return this.update_widget_position(grid_data, false);
+    };
+
+
+    /**
+    * Add a widget to the mapped array of positions.
+    *
+    * @method add_to_gridmap
+    * @param {Object} grid_data The grid coords object representing the cells
+    *  to update in the mapped array.
+    * @param {HTMLElement|Boolean} value The value to set in the specified
+    *  position .
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.add_to_gridmap = function(grid_data, value) {
+        this.update_widget_position(grid_data, value || grid_data.el);
+
+        if (grid_data.el) {
+            var $widgets = this.widgets_below(grid_data.el);
+            $widgets.each($.proxy(function(i, widget) {
+                this.move_widget_up( $(widget));
+            }, this));
+        }
+    };
+
+
+    /**
+    * Make widgets draggable.
+    *
+    * @uses Draggable
+    * @method draggable
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.draggable = function() {
+        var self = this;
+        var draggable_options = $.extend(true, {}, this.options.draggable, {
+            offset_left: this.options.widget_margins[0],
+            items: '.gs_w',
+            start: function(event, ui) {
+                self.$widgets.filter('.player-revert')
+                    .removeClass('player-revert');
+
+                self.$player = $(this);
+                self.$helper = self.options.draggable.helper === 'clone' ?
+                    $(ui.helper) : self.$player;
+                self.helper = !self.$helper.is(self.$player);
+
+                self.on_start_drag.call(self, event, ui);
+                self.$el.trigger('gridster:dragstart');
+            },
+            stop: function(event, ui) {
+                self.on_stop_drag.call(self, event, ui);
+                self.$el.trigger('gridster:dragstop');
+            },
+            drag: throttle(function(event, ui) {
+                self.on_drag.call(self, event, ui);
+                self.$el.trigger('gridster:drag');
+            }, 60)
+          });
+
+        this.drag_api = this.$el.drag(draggable_options).data('drag');
+        return this;
+    };
+
+
+    /**
+    * This function is executed when the player begins to be dragged.
+    *
+    * @method on_start_drag
+    * @param {Event} The original browser event
+    * @param {Object} A prepared ui object.
+    */
+    fn.on_start_drag = function(event, ui) {
+
+        this.$helper.add(this.$player).add(this.$wrapper).addClass('dragging');
+
+        this.$player.addClass('player');
+        this.player_grid_data = this.$player.coords().grid;
+        this.placeholder_grid_data = $.extend({}, this.player_grid_data);
+
+        //set new grid height along the dragging period
+        this.$el.css('height', this.$el.height() +
+          (this.player_grid_data.size_y * this.min_widget_height));
+
+        var colliders = this.faux_grid;
+        var coords = this.$player.data('coords').coords;
+
+        this.cells_occupied_by_player = this.get_cells_occupied(
+            this.player_grid_data);
+        this.cells_occupied_by_placeholder = this.get_cells_occupied(
+            this.placeholder_grid_data);
+
+        this.last_cols = [];
+        this.last_rows = [];
+
+
+        // see jquery.collision.js
+        this.collision_api = this.$helper.collision(
+            colliders, this.options.collision);
+
+        this.$preview_holder = $('<li />', {
+              'class': 'preview-holder',
+              'data-row': this.$player.attr('data-row'),
+              'data-col': this.$player.attr('data-col'),
+              css: {
+                  width: coords.width,
+                  height: coords.height
+              }
+        }).appendTo(this.$el);
+
+        if (this.options.draggable.start) {
+          this.options.draggable.start.call(this, event, ui);
+        }
+    };
+
+
+    /**
+    * This function is executed when the player is being dragged.
+    *
+    * @method on_drag
+    * @param {Event} The original browser event
+    * @param {Object} A prepared ui object.
+    */
+    fn.on_drag = function(event, ui) {
+        //break if dragstop has been fired
+        if (this.$player === null) {
+            return false;
+        };
+
+        var abs_offset = {
+            left: ui.position.left + this.baseX,
+            top: ui.position.top + this.baseY
+        };
+
+        this.colliders_data = this.collision_api.get_closest_colliders(
+            abs_offset);
+
+        this.on_overlapped_column_change(
+            this.on_start_overlapping_column,
+            this.on_stop_overlapping_column
+        );
+
+        this.on_overlapped_row_change(
+            this.on_start_overlapping_row,
+            this.on_stop_overlapping_row
+        );
+
+        if (this.helper && this.$player) {
+            this.$player.css({
+                'left': ui.position.left,
+                'top': ui.position.top
+            });
+        }
+
+        if (this.options.draggable.drag) {
+            this.options.draggable.drag.call(this, event, ui);
+        }
+    };
+
+    /**
+    * This function is executed when the player stops being dragged.
+    *
+    * @method on_stop_drag
+    * @param {Event} The original browser event
+    * @param {Object} A prepared ui object.
+    */
+    fn.on_stop_drag = function(event, ui) {
+        this.$helper.add(this.$player).add(this.$wrapper)
+            .removeClass('dragging');
+
+        ui.position.left = ui.position.left + this.baseX;
+        ui.position.top = ui.position.top + this.baseY;
+        this.colliders_data = this.collision_api.get_closest_colliders(ui.position);
+
+        this.on_overlapped_column_change(
+            this.on_start_overlapping_column,
+            this.on_stop_overlapping_column
+        );
+
+        this.on_overlapped_row_change(
+            this.on_start_overlapping_row,
+            this.on_stop_overlapping_row
+        );
+
+        this.$player.addClass('player-revert').removeClass('player')
+            .attr({
+                'data-col': this.placeholder_grid_data.col,
+                'data-row': this.placeholder_grid_data.row
+            }).css({
+                'left': '',
+                'top': ''
+            });
+
+        this.$changed = this.$changed.add(this.$player);
+
+        this.cells_occupied_by_player = this.get_cells_occupied(
+            this.placeholder_grid_data);
+        this.set_cells_player_occupies(
+            this.placeholder_grid_data.col, this.placeholder_grid_data.row);
+
+        this.$player.coords().grid.row = this.placeholder_grid_data.row;
+        this.$player.coords().grid.col = this.placeholder_grid_data.col;
+
+        if (this.options.draggable.stop) {
+          this.options.draggable.stop.call(this, event, ui);
+        }
+
+        this.$preview_holder.remove();
+        this.$player = null;
+
+        this.set_dom_grid_height();
+    };
+
+
+    /**
+    * Executes the callbacks passed as arguments when a column begins to be
+    * overlapped or stops being overlapped.
+    *
+    * @param {Function} start_callback Function executed when a new column
+    *  begins to be overlapped. The column is passed as first argument.
+    * @param {Function} stop_callback Function executed when a column stops
+    *  being overlapped. The column is passed as first argument.
+    * @method on_overlapped_column_change
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.on_overlapped_column_change = function(start_callback, stop_callback) {
+        if (!this.colliders_data.length) {
+            return;
+        }
+        var cols = this.get_targeted_columns(
+            this.colliders_data[0].el.data.col);
+
+        var last_n_cols = this.last_cols.length;
+        var n_cols = cols.length;
+        var i;
+
+        for (i = 0; i < n_cols; i++) {
+            if ($.inArray(cols[i], this.last_cols) === -1) {
+                (start_callback || $.noop).call(this, cols[i]);
+            }
+        }
+
+        for (i = 0; i< last_n_cols; i++) {
+            if ($.inArray(this.last_cols[i], cols) === -1) {
+                (stop_callback || $.noop).call(this, this.last_cols[i]);
+            }
+        }
+
+        this.last_cols = cols;
+
+        return this;
+    };
+
+
+    /**
+    * Executes the callbacks passed as arguments when a row starts to be
+    * overlapped or stops being overlapped.
+    *
+    * @param {Function} start_callback Function executed when a new row begins
+    *  to be overlapped. The row is passed as first argument.
+    * @param {Function} stop_callback Function executed when a row stops being
+    *  overlapped. The row is passed as first argument.
+    * @method on_overlapped_row_change
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.on_overlapped_row_change = function(start_callback, end_callback) {
+        if (!this.colliders_data.length) {
+            return;
+        }
+        var rows = this.get_targeted_rows(this.colliders_data[0].el.data.row);
+        var last_n_rows = this.last_rows.length;
+        var n_rows = rows.length;
+        var i;
+
+        for (i = 0; i < n_rows; i++) {
+            if ($.inArray(rows[i], this.last_rows) === -1) {
+                (start_callback || $.noop).call(this, rows[i]);
+            }
+        }
+
+        for (i = 0; i < last_n_rows; i++) {
+            if ($.inArray(this.last_rows[i], rows) === -1) {
+                (end_callback || $.noop).call(this, this.last_rows[i]);
+            }
+        }
+
+        this.last_rows = rows;
+    };
+
+
+    /**
+    * Sets the current position of the player
+    *
+    * @param {Function} start_callback Function executed when a new row begins
+    *  to be overlapped. The row is passed as first argument.
+    * @param {Function} stop_callback Function executed when a row stops being
+    *  overlapped. The row is passed as first argument.
+    * @method set_player
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.set_player = function(col, row) {
+        this.empty_cells_player_occupies();
+
+        var self = this;
+        var cell = self.colliders_data[0].el.data;
+        var to_col = cell.col;
+        var to_row = row || cell.row;
+
+        this.player_grid_data = {
+            col: to_col,
+            row: to_row,
+            size_y : this.player_grid_data.size_y,
+            size_x : this.player_grid_data.size_x
+        };
+
+        this.cells_occupied_by_player = this.get_cells_occupied(
+            this.player_grid_data);
+
+        var $overlapped_widgets = this.get_widgets_overlapped(
+            this.player_grid_data);
+
+        var constraints = this.widgets_constraints($overlapped_widgets);
+
+        this.manage_movements(constraints.can_go_up, to_col, to_row);
+        this.manage_movements(constraints.can_not_go_up, to_col, to_row);
+
+        /* if there is not widgets overlapping in the new player position,
+         * update the new placeholder position. */
+        if (!$overlapped_widgets.length) {
+            var pp = this.can_go_player_up(this.player_grid_data);
+            if (pp !== false) {
+                to_row = pp;
+            }
+            this.set_placeholder(to_col, to_row);
+        }
+
+        return {
+            col: to_col,
+            row: to_row
+        };
+    };
+
+
+    /**
+    * See which of the widgets in the $widgets param collection can go to
+    * a upper row and which not.
+    *
+    * @method widgets_contraints
+    * @param {HTMLElements} $widgets A jQuery wrapped collection of
+    * HTMLElements.
+    * @return {Array} Returns a literal Object with two keys: `can_go_up` &
+    * `can_not_go_up`. Each contains a set of HTMLElements.
+    */
+    fn.widgets_constraints = function($widgets) {
+        var $widgets_can_go_up = $([]);
+        var $widgets_can_not_go_up;
+        var wgd_can_go_up = [];
+        var wgd_can_not_go_up = [];
+
+        $widgets.each($.proxy(function(i, w) {
+            var $w = $(w);
+            var wgd = $w.coords().grid;
+            if (this.can_go_widget_up(wgd)) {
+                $widgets_can_go_up = $widgets_can_go_up.add($w);
+                wgd_can_go_up.push(wgd);
+            }else{
+                wgd_can_not_go_up.push(wgd);
+            }
+        }, this));
+
+        $widgets_can_not_go_up = $widgets.not($widgets_can_go_up);
+
+        return {
+            can_go_up: this.sort_by_row_asc(wgd_can_go_up),
+            can_not_go_up: this.sort_by_row_desc(wgd_can_not_go_up)
+        };
+    };
+
+
+    /**
+    * Sorts an Array of grid coords objects (representing the grid coords of
+    * each widget) in ascending way.
+    *
+    * @method sort_by_row_asc
+    * @param {Array} widgets Array of grid coords objects
+    * @return {Array} Returns the array sorted.
+    */
+    fn.sort_by_row_asc = function(widgets) {
+        widgets = widgets.sort(function(a, b) {
+           if (a.row > b.row) {
+               return 1;
+           }
+           return -1;
+        });
+
+        return widgets;
+    };
+
+
+    /**
+    * Sorts an Array of grid coords objects (representing the grid coords of
+    * each widget) placing first the empty cells upper left.
+    *
+    * @method sort_by_row_and_col_asc
+    * @param {Array} widgets Array of grid coords objects
+    * @return {Array} Returns the array sorted.
+    */
+    fn.sort_by_row_and_col_asc = function(widgets) {
+        widgets = widgets.sort(function(a, b) {
+           if (a.row > b.row || a.row == b.row && a.col > b.col) {
+               return 1;
+           }
+           return -1;
+        });
+
+        return widgets;
+    };
+
+
+    /**
+    * Sorts an Array of grid coords objects by column (representing the grid
+    * coords of each widget) in ascending way.
+    *
+    * @method sort_by_col_asc
+    * @param {Array} widgets Array of grid coords objects
+    * @return {Array} Returns the array sorted.
+    */
+    fn.sort_by_col_asc = function(widgets) {
+        widgets = widgets.sort(function(a, b) {
+           if (a.col > b.col) {
+               return 1;
+           }
+           return -1;
+        });
+
+        return widgets;
+    };
+
+
+    /**
+    * Sorts an Array of grid coords objects (representing the grid coords of
+    * each widget) in descending way.
+    *
+    * @method sort_by_row_desc
+    * @param {Array} widgets Array of grid coords objects
+    * @return {Array} Returns the array sorted.
+    */
+    fn.sort_by_row_desc = function(widgets) {
+        widgets = widgets.sort(function(a, b) {
+            if (a.row + a.size_y < b.row + b.size_y) {
+                return 1;
+            }
+           return -1;
+        });
+        return widgets;
+    };
+
+
+    /**
+    * Sorts an Array of grid coords objects (representing the grid coords of
+    * each widget) in descending way.
+    *
+    * @method manage_movements
+    * @param {HTMLElements} $widgets A jQuery collection of HTMLElements
+    *  representing the widgets you want to move.
+    * @param {Number} to_col The column to which we want to move the widgets.
+    * @param {Number} to_row The row to which we want to move the widgets.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.manage_movements = function($widgets, to_col, to_row) {
+        $.each($widgets, $.proxy(function(i, w) {
+            var wgd = w;
+            var $w = wgd.el;
+
+            var can_go_widget_up = this.can_go_widget_up(wgd);
+
+            if (can_go_widget_up) {
+                //target CAN go up
+                //so move widget up
+                this.move_widget_to($w, can_go_widget_up);
+                this.set_placeholder(to_col, can_go_widget_up + wgd.size_y);
+
+            } else {
+                //target can't go up
+                var can_go_player_up = this.can_go_player_up(
+                    this.player_grid_data);
+
+                if (!can_go_player_up) {
+                    // target can't go up
+                    // player cant't go up
+                    // so we need to move widget down to a position that dont
+                    // overlaps player
+                    var y = (to_row + this.player_grid_data.size_y) - wgd.row;
+
+                    this.move_widget_down($w, y);
+                    this.set_placeholder(to_col, to_row);
+                }
+            }
+        }, this));
+
+        return this;
+    };
+
+    /**
+    * Determines if there is a widget in the row and col given. Or if the
+    * HTMLElement passed as first argument is the player.
+    *
+    * @method is_player
+    * @param {Number|HTMLElement} col_or_el A jQuery wrapped collection of
+    * HTMLElements.
+    * @param {Number} [row] The column to which we want to move the widgets.
+    * @return {Boolean} Returns true or false.
+    */
+    fn.is_player = function(col_or_el, row) {
+        if (row && !this.gridmap[col_or_el]) { return false; }
+        var $w = row ? this.gridmap[col_or_el][row] : col_or_el;
+        return $w && ($w.is(this.$player) || $w.is(this.$helper));
+    };
+
+
+    /**
+    * Determines if the widget that is being dragged is currently over the row
+    * and col given.
+    *
+    * @method is_player_in
+    * @param {Number} col The column to check.
+    * @param {Number} row The row to check.
+    * @return {Boolean} Returns true or false.
+    */
+    fn.is_player_in = function(col, row) {
+        var c = this.cells_occupied_by_player || {};
+        return $.inArray(col, c.cols) >= 0 && $.inArray(row, c.rows) >= 0;
+    };
+
+
+    /**
+    * Determines if the placeholder is currently over the row and col given.
+    *
+    * @method is_placeholder_in
+    * @param {Number} col The column to check.
+    * @param {Number} row The row to check.
+    * @return {Boolean} Returns true or false.
+    */
+    fn.is_placeholder_in = function(col, row) {
+        var c = this.cells_occupied_by_placeholder || {};
+        return this.is_placeholder_in_col(col) && $.inArray(row, c.rows) >= 0;
+    };
+
+
+    /**
+    * Determines if the placeholder is currently over the column given.
+    *
+    * @method is_placeholder_in_col
+    * @param {Number} col The column to check.
+    * @return {Boolean} Returns true or false.
+    */
+    fn.is_placeholder_in_col = function(col) {
+        var c = this.cells_occupied_by_placeholder || [];
+        return $.inArray(col, c.cols) >= 0;
+    };
+
+
+    /**
+    * Determines if the cell represented by col and row params is empty.
+    *
+    * @method is_empty
+    * @param {Number} col The column to check.
+    * @param {Number} row The row to check.
+    * @return {Boolean} Returns true or false.
+    */
+    fn.is_empty = function(col, row) {
+        if (typeof this.gridmap[col] !== 'undefined' &&
+            typeof this.gridmap[col][row] !== 'undefined' &&
+            this.gridmap[col][row] === false
+        ) {
+            return true;
+        }
+        return false;
+    };
+
+
+    /**
+    * Determines if the cell represented by col and row params is occupied.
+    *
+    * @method is_occupied
+    * @param {Number} col The column to check.
+    * @param {Number} row The row to check.
+    * @return {Boolean} Returns true or false.
+    */
+    fn.is_occupied = function(col, row) {
+        if (!this.gridmap[col]) {
+            return false;
+        }
+
+        if (this.gridmap[col][row]) {
+            return true;
+        }
+        return false;
+    };
+
+
+    /**
+    * Determines if there is a widget in the cell represented by col/row params.
+    *
+    * @method is_widget
+    * @param {Number} col The column to check.
+    * @param {Number} row The row to check.
+    * @return {Boolean|HTMLElement} Returns false if there is no widget,
+    * else returns the jQuery HTMLElement
+    */
+    fn.is_widget = function(col, row) {
+        var cell = this.gridmap[col];
+        if (!cell) {
+            return false;
+        }
+
+        cell = cell[row];
+
+        if (cell) {
+            return cell;
+        }
+
+        return false;
+    };
+
+
+    /**
+    * Determines if there is a widget in the cell represented by col/row
+    * params and if this is under the widget that is being dragged.
+    *
+    * @method is_widget_under_player
+    * @param {Number} col The column to check.
+    * @param {Number} row The row to check.
+    * @return {Boolean} Returns true or false.
+    */
+    fn.is_widget_under_player = function(col, row) {
+        if (this.is_widget(col, row)) {
+            return this.is_player_in(col, row);
+        }
+        return false;
+    };
+
+
+    /**
+    * Get widgets overlapping with the player.
+    *
+    * @method get_widgets_under_player
+    * @return {HTMLElement} Returns a jQuery collection of HTMLElements
+    */
+    fn.get_widgets_under_player = function() {
+        var cells = this.cells_occupied_by_player;
+        var $widgets = $([]);
+
+        $.each(cells.cols, $.proxy(function(i, col) {
+            $.each(cells.rows, $.proxy(function(i, row) {
+                if(this.is_widget(col, row)) {
+                    $widgets = $widgets.add(this.gridmap[col][row]);
+                }
+            }, this));
+        }, this));
+
+        return $widgets;
+    };
+
+
+    /**
+    * Put placeholder at the row and column specified.
+    *
+    * @method set_placeholder
+    * @param {Number} col The column to which we want to move the
+    *  placeholder.
+    * @param {Number} row The row to which we want to move the
+    *  placeholder.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.set_placeholder = function(col, row) {
+        var phgd = $.extend({}, this.placeholder_grid_data);
+        var $nexts = this.widgets_below({
+                col: phgd.col,
+                row: phgd.row,
+                size_y: phgd.size_y,
+                size_x: phgd.size_x
+            });
+
+        //Prevents widgets go out of the grid
+        var right_col = (col + phgd.size_x - 1);
+        if (right_col > this.cols) {
+            col = col - (right_col - col);
+        }
+
+        var moved_down = this.placeholder_grid_data.row < row;
+        var changed_column = this.placeholder_grid_data.col !== col;
+
+        this.placeholder_grid_data.col = col;
+        this.placeholder_grid_data.row = row;
+
+        this.cells_occupied_by_placeholder = this.get_cells_occupied(
+            this.placeholder_grid_data);
+
+        this.$preview_holder.attr({
+            'data-row' : row,
+            'data-col' : col
+        });
+
+        if (moved_down || changed_column) {
+            $nexts.each($.proxy(function(i, widget) {
+                this.move_widget_up(
+                 $(widget), this.placeholder_grid_data.col - col + phgd.size_y);
+            }, this));
+        }
+
+    };
+
+
+    /**
+    * Determines whether the player can move to a position above.
+    *
+    * @method can_go_player_up
+    * @param {Object} widget_grid_data The actual grid coords object of the
+    *  player.
+    * @return {Number|Boolean} If the player can be moved to an upper row
+    *  returns the row number, else returns false.
+    */
+    fn.can_go_player_up = function(widget_grid_data) {
+        var p_bottom_row = widget_grid_data.row + widget_grid_data.size_y - 1;
+        var result = true;
+        var upper_rows = [];
+        var min_row = 10000;
+        var $widgets_under_player = this.get_widgets_under_player();
+
+        /* generate an array with columns as index and array with upper rows
+         * empty as value */
+        this.for_each_column_occupied(widget_grid_data, function(tcol) {
+            var grid_col = this.gridmap[tcol];
+            var r = p_bottom_row + 1;
+            upper_rows[tcol] = [];
+
+            while (--r > 0) {
+                if (this.is_empty(tcol, r) || this.is_player(tcol, r) ||
+                    this.is_widget(tcol, r) &&
+                    grid_col[r].is($widgets_under_player)
+                ) {
+                    upper_rows[tcol].push(r);
+                    min_row = r < min_row ? r : min_row;
+                }else{
+                    break;
+                }
+            }
+
+            if (upper_rows[tcol].length === 0) {
+                result = false;
+                return true; //break
+            }
+
+            upper_rows[tcol].sort();
+        });
+
+        if (!result) { return false; }
+
+        return this.get_valid_rows(widget_grid_data, upper_rows, min_row);
+    };
+
+
+    /**
+    * Determines whether a widget can move to a position above.
+    *
+    * @method can_go_widget_up
+    * @param {Object} widget_grid_data The actual grid coords object of the
+    *  widget we want to check.
+    * @return {Number|Boolean} If the widget can be moved to an upper row
+    *  returns the row number, else returns false.
+    */
+    fn.can_go_widget_up = function(widget_grid_data) {
+        var p_bottom_row = widget_grid_data.row + widget_grid_data.size_y - 1;
+        var result = true;
+        var upper_rows = [];
+        var min_row = 10000;
+
+        if (widget_grid_data.col < this.player_grid_data.col &&
+            (widget_grid_data.col + widget_grid_data.size_y - 1) >
+            (this.player_grid_data.col + this.player_grid_data.size_y - 1)
+         ) {
+            return false;
+        };
+
+        /* generate an array with columns as index and array with upper rows
+         * empty as value */
+        this.for_each_column_occupied(widget_grid_data, function(tcol) {
+            var grid_col = this.gridmap[tcol];
+            upper_rows[tcol] = [];
+
+            var r = p_bottom_row + 1;
+
+            while (--r > 0) {
+                if (this.is_widget(tcol, r) && !this.is_player_in(tcol, r)) {
+                    if (!grid_col[r].is(widget_grid_data.el)) {
+                        break;
+                    };
+                }
+
+                if (!this.is_player(tcol, r) &&
+                    !this.is_placeholder_in(tcol, r) &&
+                    !this.is_player_in(tcol, r)) {
+                    upper_rows[tcol].push(r);
+                };
+
+                if (r < min_row) {
+                    min_row = r;
+                }
+            }
+
+            if (upper_rows[tcol].length === 0) {
+                result = false;
+                return true; //break
+            }
+
+            upper_rows[tcol].sort();
+        });
+
+        if (!result) { return false; }
+
+        return this.get_valid_rows(widget_grid_data, upper_rows, min_row);
+    };
+
+
+    /**
+    * Search a valid row for the widget represented by `widget_grid_data' in
+    * the `upper_rows` array. Iteration starts from row specified in `min_row`.
+    *
+    * @method get_valid_rows
+    * @param {Object} widget_grid_data The actual grid coords object of the
+    *  player.
+    * @param {Array} upper_rows An array with columns as index and arrays
+    *  of valid rows as values.
+    * @param {Number} min_row The upper row from which the iteration will start.
+    * @return {Number|Boolean} Returns the upper row valid from the `upper_rows`
+    *  for the widget in question.
+    */
+    fn.get_valid_rows = function(widget_grid_data, upper_rows, min_row) {
+        var p_top_row = widget_grid_data.row;
+        var p_bottom_row = widget_grid_data.row + widget_grid_data.size_y - 1;
+        var size_y = widget_grid_data.size_y;
+        var r = min_row - 1;
+        var valid_rows = [];
+
+        while (++r <= p_bottom_row ) {
+            var common = true;
+            $.each(upper_rows, function(col, rows) {
+                if ($.isArray(rows) && $.inArray(r, rows) === -1) {
+                    common = false;
+                }
+            });
+
+            if (common === true) {
+                valid_rows.push(r);
+                if (valid_rows.length === size_y) {
+                    break;
+                }
+            }
+        }
+
+        var new_row = false;
+        if (size_y === 1) {
+            if (valid_rows[0] !== p_top_row) {
+                new_row = valid_rows[0] || false;
+            }
+        }else{
+            if (valid_rows[0] !== p_top_row) {
+                new_row = this.get_consecutive_numbers_index(
+                    valid_rows, size_y);
+            }
+        }
+
+        return new_row;
+    };
+
+
+    fn.get_consecutive_numbers_index = function(arr, size_y) {
+        var max = arr.length;
+        var result = [];
+        var first = true;
+        var prev = -1; // or null?
+
+        for (var i=0; i < max; i++) {
+            if (first || arr[i] === prev + 1) {
+                result.push(i);
+                if (result.length === size_y) {
+                    break;
+                }
+                first = false;
+            }else{
+                result = [];
+                first = true;
+            }
+
+            prev = arr[i];
+        }
+
+        return result.length >= size_y ? arr[result[0]] : false;
+    };
+
+
+    /**
+    * Get widgets overlapping with the player.
+    *
+    * @method get_widgets_overlapped
+    * @return {HTMLElements} Returns a jQuery collection of HTMLElements.
+    */
+    fn.get_widgets_overlapped = function() {
+        var $w;
+        var $widgets = $([]);
+        var used = [];
+        var rows_from_bottom = this.cells_occupied_by_player.rows.slice(0);
+        rows_from_bottom.reverse();
+
+        $.each(this.cells_occupied_by_player.cols, $.proxy(function(i, col) {
+            $.each(rows_from_bottom, $.proxy(function(i, row) {
+                // if there is a widget in the player position
+                if (!this.gridmap[col]) { return true; } //next iteration
+                var $w = this.gridmap[col][row];
+
+                if (this.is_occupied(col, row) && !this.is_player($w) &&
+                    $.inArray($w, used) === -1
+                ) {
+                    $widgets = $widgets.add($w);
+                    used.push($w);
+                }
+
+            }, this));
+        }, this));
+
+        return $widgets;
+    };
+
+
+    /**
+    * This callback is executed when the player begins to collide with a column.
+    *
+    * @method on_start_overlapping_column
+    * @param {Number} col The collided column.
+    * @return {HTMLElements} Returns a jQuery collection of HTMLElements.
+    */
+    fn.on_start_overlapping_column = function(col) {
+        this.set_player(col, false);
+    };
+
+
+    /**
+    * A callback executed when the player begins to collide with a row.
+    *
+    * @method on_start_overlapping_row
+    * @param {Number} col The collided row.
+    * @return {HTMLElements} Returns a jQuery collection of HTMLElements.
+    */
+    fn.on_start_overlapping_row = function(row) {
+        this.set_player(false, row);
+    };
+
+
+    /**
+    * A callback executed when the the player ends to collide with a column.
+    *
+    * @method on_stop_overlapping_column
+    * @param {Number} col The collided row.
+    * @return {HTMLElements} Returns a jQuery collection of HTMLElements.
+    */
+    fn.on_stop_overlapping_column = function(col) {
+        this.set_player(col, false);
+
+        var self = this;
+        this.for_each_widget_below(col, this.cells_occupied_by_player.rows[0],
+            function(tcol, trow) {
+                self.move_widget_up(this, self.player_grid_data.size_y);
+        });
+    };
+
+
+    /**
+    * This callback is executed when the player ends to collide with a row.
+    *
+    * @method on_stop_overlapping_row
+    * @param {Number} row The collided row.
+    * @return {HTMLElements} Returns a jQuery collection of HTMLElements.
+    */
+    fn.on_stop_overlapping_row = function(row) {
+        this.set_player(false, row);
+
+        var self = this;
+        var cols = this.cells_occupied_by_player.cols;
+        for (var c = 0, cl = cols.length; c < cl; c++) {
+            this.for_each_widget_below(cols[c], row, function(tcol, trow) {
+                self.move_widget_up(this, self.player_grid_data.size_y);
+            });
+        }
+    };
+
+
+    /**
+    * Move a widget to a specific row. The cell or cells must be empty.
+    * If the widget has widgets below, all of these widgets will be moved also
+    * if they can.
+    *
+    * @method move_widget_to
+    * @param {HTMLElement} $widget The jQuery wrapped HTMLElement of the
+    * widget is going to be moved.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.move_widget_to = function($widget, row) {
+        var self = this;
+        var widget_grid_data = $widget.coords().grid;
+        var diff = row - widget_grid_data.row;
+        var $next_widgets = this.widgets_below($widget);
+
+        var can_move_to_new_cell = this.can_move_to(
+            widget_grid_data, widget_grid_data.col, row, $widget);
+
+        if (can_move_to_new_cell === false) {
+            return false;
+        }
+
+        this.remove_from_gridmap(widget_grid_data);
+        widget_grid_data.row = row;
+        this.add_to_gridmap(widget_grid_data);
+        $widget.attr('data-row', row);
+        this.$changed = this.$changed.add($widget);
+
+
+        $next_widgets.each(function(i, widget) {
+            var $w = $(widget);
+            var wgd = $w.coords().grid;
+            var can_go_up = self.can_go_widget_up(wgd);
+            if (can_go_up && can_go_up !== wgd.row) {
+                self.move_widget_to($w, can_go_up);
+            }
+        });
+
+        return this;
+    };
+
+
+    /**
+    * Move up the specified widget and all below it.
+    *
+    * @method move_widget_up
+    * @param {HTMLElement} $widget The widget you want to move.
+    * @param {Number} [y_units] The number of cells that the widget has to move.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.move_widget_up = function($widget, y_units) {
+        var el_grid_data = $widget.coords().grid;
+        var actual_row = el_grid_data.row;
+        var moved = [];
+        var can_go_up = true;
+        y_units || (y_units = 1);
+
+        if (!this.can_go_up($widget)) { return false; } //break;
+
+        this.for_each_column_occupied(el_grid_data, function(col) {
+            // can_go_up
+            if ($.inArray($widget, moved) === -1) {
+                var widget_grid_data = $widget.coords().grid;
+                var next_row = actual_row - y_units;
+                next_row = this.can_go_up_to_row(
+                    widget_grid_data, col, next_row);
+
+                if (!next_row) {
+                    return true;
+                }
+
+                var $next_widgets = this.widgets_below($widget);
+
+                this.remove_from_gridmap(widget_grid_data);
+                widget_grid_data.row = next_row;
+                this.add_to_gridmap(widget_grid_data);
+                $widget.attr('data-row', widget_grid_data.row);
+                this.$changed = this.$changed.add($widget);
+
+                moved.push($widget);
+
+                $next_widgets.each($.proxy(function(i, widget) {
+                    this.move_widget_up($(widget), y_units);
+                }, this));
+            }
+        });
+
+    };
+
+
+    /**
+    * Move down the specified widget and all below it.
+    *
+    * @method move_widget_down
+    * @param {HTMLElement} $widget The jQuery object representing the widget
+    *  you want to move.
+    * @param {Number} The number of cells that the widget has to move.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.move_widget_down = function($widget, y_units) {
+        var el_grid_data = $widget.coords().grid;
+        var actual_row = el_grid_data.row;
+        var moved = [];
+        var y_diff = y_units;
+
+        if (!$widget) { return false; }
+
+        if ($.inArray($widget, moved) === -1) {
+
+            var widget_grid_data = $widget.coords().grid;
+            var next_row = actual_row + y_units;
+            var $next_widgets = this.widgets_below($widget);
+
+            this.remove_from_gridmap(widget_grid_data);
+
+            $next_widgets.each($.proxy(function(i, widget) {
+                var $w = $(widget);
+                var wd = $w.coords().grid;
+                var tmp_y = this.displacement_diff(
+                             wd, widget_grid_data, y_diff);
+
+                if (tmp_y > 0) {
+                    this.move_widget_down($w, tmp_y);
+                }
+            }, this));
+
+            widget_grid_data.row = next_row;
+            this.update_widget_position(widget_grid_data, $widget);
+            $widget.attr('data-row', widget_grid_data.row);
+            this.$changed = this.$changed.add($widget);
+
+            moved.push($widget);
+        }
+    };
+
+
+    /**
+    * Check if the widget can move to the specified row, else returns the
+    * upper row possible.
+    *
+    * @method can_go_up_to_row
+    * @param {Number} widget_grid_data The current grid coords object of the
+    *  widget.
+    * @param {Number} col The target column.
+    * @param {Number} row The target row.
+    * @return {Boolean|Number} Returns the row number if the widget can move
+    *  to the target position, else returns false.
+    */
+    fn.can_go_up_to_row = function(widget_grid_data, col, row) {
+        var ga = this.gridmap;
+        var result = true;
+        var urc = []; // upper_rows_in_columns
+        var actual_row = widget_grid_data.row;
+        var r;
+
+        /* generate an array with columns as index and array with
+         * upper rows empty in the column */
+        this.for_each_column_occupied(widget_grid_data, function(tcol) {
+            var grid_col = ga[tcol];
+            urc[tcol] = [];
+
+            r = actual_row;
+            while (r--) {
+                if (this.is_empty(tcol, r) &&
+                    !this.is_placeholder_in(tcol, r)
+                ) {
+                    urc[tcol].push(r);
+                }else{
+                    break;
+                }
+            }
+
+            if (!urc[tcol].length) {
+                result = false;
+                return true;
+            }
+
+        });
+
+        if (!result) { return false; }
+
+        /* get common rows starting from upper position in all the columns
+         * that widget occupies */
+        r = row;
+        for (r = 1; r < actual_row; r++) {
+            var common = true;
+
+            for (var uc = 0, ucl = urc.length; uc < ucl; uc++) {
+                if (urc[uc] && $.inArray(r, urc[uc]) === -1) {
+                    common = false;
+                }
+            }
+
+            if (common === true) {
+                result = r;
+                break;
+            }
+        }
+
+        return result;
+    };
+
+
+    fn.displacement_diff = function(widget_grid_data, parent_bgd, y_units) {
+        var actual_row = widget_grid_data.row;
+        var diffs = [];
+        var parent_max_y = parent_bgd.row + parent_bgd.size_y;
+
+        this.for_each_column_occupied(widget_grid_data, function(col) {
+            var temp_y_units = 0;
+
+            for (var r = parent_max_y; r < actual_row; r++) {
+                if (this.is_empty(col, r)) {
+                    temp_y_units = temp_y_units + 1;
+                }
+            }
+
+            diffs.push(temp_y_units);
+        });
+
+        var max_diff = Math.max.apply(Math, diffs);
+        y_units = (y_units - max_diff);
+
+        return y_units > 0 ? y_units : 0;
+    };
+
+
+    /**
+    * Get widgets below a widget.
+    *
+    * @method widgets_below
+    * @param {HTMLElement} $el The jQuery wrapped HTMLElement.
+    * @return {HTMLElements} A jQuery collection of HTMLElements.
+    */
+    fn.widgets_below = function($el) {
+        var el_grid_data = $.isPlainObject($el) ? $el : $el.coords().grid;
+        var self = this;
+        var ga = this.gridmap;
+        var next_row = el_grid_data.row + el_grid_data.size_y - 1;
+        var $nexts = $([]);
+
+        this.for_each_column_occupied(el_grid_data, function(col) {
+            self.for_each_widget_below(col, next_row,
+                function(tcol, trow) {
+                    if (!self.is_player(this) &&
+                        $.inArray(this, $nexts) === -1) {
+                            $nexts = $nexts.add(this);
+                            return true; // break
+                    }
+                });
+        });
+
+        return this.sort_by_row_asc($nexts);
+    };
+
+
+    /**
+    * Update the array of mapped positions with the new player position.
+    *
+    * @method set_cells_player_occupies
+    * @param {Number} col The new player col.
+    * @param {Number} col The new player row.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.set_cells_player_occupies = function(col, row) {
+        this.remove_from_gridmap(this.placeholder_grid_data);
+        this.placeholder_grid_data.col = col;
+        this.placeholder_grid_data.row = row;
+        this.add_to_gridmap(this.placeholder_grid_data, this.$player);
+        return this;
+    };
+
+
+    /**
+    * Remove from the array of mapped positions the reference to the player.
+    *
+    * @method empty_cells_player_occupies
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.empty_cells_player_occupies = function() {
+        this.remove_from_gridmap(this.placeholder_grid_data);
+        return this;
+    };
+
+
+    fn.can_go_up = function($el) {
+        var el_grid_data = $el.coords().grid;
+        var initial_row = el_grid_data.row;
+        var prev_row = initial_row - 1;
+        var ga = this.gridmap;
+        var upper_rows_by_column = [];
+
+        var result = true;
+        if (initial_row === 1) { return false; }
+
+        this.for_each_column_occupied(el_grid_data, function(col) {
+            var $w = this.is_widget(col, prev_row);
+            if (this.is_occupied(col, prev_row) ||
+                this.is_player(col, prev_row) ||
+                this.is_placeholder_in(col, prev_row) ||
+                this.is_player_in(col, prev_row)
+            ) {
+                result = false;
+                return true; //break
+            }
+        });
+
+        return result;
+    };
+
+
+
+    /**
+    * Check if it's possible to move a widget to a specific col/row. It takes
+    * into account the dimensions (`size_y` and `size_x` attrs. of the grid
+    *  coords object) the widget occupies.
+    *
+    * @method can_move_to
+    * @param {Object} widget_grid_data The grid coords object that represents
+    *  the widget.
+    * @param {Object} col The col to check.
+    * @param {Object} row The row to check.
+    * @return {Boolean} Returns true if all cells are empty, else return false.
+    */
+    fn.can_move_to = function(widget_grid_data, col, row) {
+        var ga = this.gridmap;
+        var $w = widget_grid_data.el;
+        var future_wd = {
+            size_y: widget_grid_data.size_y,
+            size_x: widget_grid_data.size_x,
+            col: col,
+            row: row
+        };
+        var result = true;
+
+        //Prevents widgets go out of the grid
+        var right_col = col + widget_grid_data.size_x - 1;
+        if (right_col > this.cols) {
+            return false;
+        };
+
+        this.for_each_cell_occupied(future_wd, function(tcol, trow) {
+            var $tw = this.is_widget(tcol, trow);
+            if ($tw && (!widget_grid_data.el || $tw.is($w))) {
+                result = false;
+            }
+        });
+
+        return result;
+    };
+
+
+    /**
+    * Given the leftmost column returns all columns that are overlapping
+    *  with the player.
+    *
+    * @method get_targeted_columns
+    * @param {Number} [from_col] The leftmost column.
+    * @return {Array} Returns an array with column numbers.
+    */
+    fn.get_targeted_columns = function(from_col) {
+        var max = (from_col || this.player_grid_data.col) +
+            (this.player_grid_data.size_x - 1);
+        var cols = [];
+        for (var col = from_col; col <= max; col++) {
+            cols.push(col);
+        }
+        return cols;
+    };
+
+
+    /**
+    * Given the upper row returns all rows that are overlapping with the player.
+    *
+    * @method get_targeted_rows
+    * @param {Number} [from_row] The upper row.
+    * @return {Array} Returns an array with row numbers.
+    */
+    fn.get_targeted_rows = function(from_row) {
+        var max = (from_row || this.player_grid_data.row) +
+            (this.player_grid_data.size_y - 1);
+        var rows = [];
+        for (var row = from_row; row <= max; row++) {
+            rows.push(row);
+        }
+        return rows;
+    };
+
+    /**
+    * Get all columns and rows that a widget occupies.
+    *
+    * @method get_cells_occupied
+    * @param {Object} el_grid_data The grid coords object of the widget.
+    * @return {Object} Returns an object like `{ cols: [], rows: []}`.
+    */
+    fn.get_cells_occupied = function(el_grid_data) {
+        var cells = { cols: [], rows: []};
+        var i;
+        if (arguments[1] instanceof jQuery) {
+            el_grid_data = arguments[1].coords().grid;
+        }
+
+        for (i = 0; i < el_grid_data.size_x; i++) {
+            var col = el_grid_data.col + i;
+            cells.cols.push(col);
+        }
+
+        for (i = 0; i < el_grid_data.size_y; i++) {
+            var row = el_grid_data.row + i;
+            cells.rows.push(row);
+        }
+
+        return cells;
+    };
+
+
+    /**
+    * Iterate over the cells occupied by a widget executing a function for
+    * each one.
+    *
+    * @method for_each_cell_occupied
+    * @param {Object} el_grid_data The grid coords object that represents the
+    *  widget.
+    * @param {Function} callback The function to execute on each column
+    *  iteration. Column and row are passed as arguments.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.for_each_cell_occupied = function(grid_data, callback) {
+        this.for_each_column_occupied(grid_data, function(col) {
+            this.for_each_row_occupied(grid_data, function(row) {
+                callback.call(this, col, row);
+            });
+        });
+        return this;
+    };
+
+
+    /**
+    * Iterate over the columns occupied by a widget executing a function for
+    * each one.
+    *
+    * @method for_each_column_occupied
+    * @param {Object} el_grid_data The grid coords object that represents
+    *  the widget.
+    * @param {Function} callback The function to execute on each column
+    *  iteration. The column number is passed as first argument.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.for_each_column_occupied = function(el_grid_data, callback) {
+        for (var i = 0; i < el_grid_data.size_x; i++) {
+            var col = el_grid_data.col + i;
+            callback.call(this, col, el_grid_data);
+        }
+    };
+
+
+    /**
+    * Iterate over the rows occupied by a widget executing a function for
+    * each one.
+    *
+    * @method for_each_row_occupied
+    * @param {Object} el_grid_data The grid coords object that represents
+    *  the widget.
+    * @param {Function} callback The function to execute on each column
+    *  iteration. The row number is passed as first argument.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.for_each_row_occupied = function(el_grid_data, callback) {
+        for (var i = 0; i < el_grid_data.size_y; i++) {
+            var row = el_grid_data.row + i;
+            callback.call(this, row, el_grid_data);
+        }
+    };
+
+
+
+    fn._traversing_widgets = function(type, direction, col, row, callback) {
+        var ga = this.gridmap;
+        if (!ga[col]) { return; }
+
+        var cr, max;
+        var action = type + '/' + direction;
+        if (arguments[2] instanceof jQuery) {
+            var el_grid_data = arguments[2].coords().grid;
+            col = el_grid_data.col;
+            row = el_grid_data.row;
+            callback = arguments[3];
+        }
+        var matched = [];
+        var trow = row;
+
+
+        var methods = {
+            'for_each/above': function() {
+                while (trow--) {
+                    if (trow > 0 && this.is_widget(col, trow) &&
+                        $.inArray(ga[col][trow], matched) === -1
+                    ) {
+                        cr = callback.call(ga[col][trow], col, trow);
+                        matched.push(ga[col][trow]);
+                        if (cr) { break; }
+                    }
+                }
+            },
+            'for_each/below': function() {
+                for (trow = row + 1, max = ga[col].length; trow < max; trow++) {
+                    if (this.is_widget(col, trow) &&
+                        $.inArray(ga[col][trow], matched) === -1
+                    ) {
+                        cr = callback.call(ga[col][trow], col, trow);
+                        matched.push(ga[col][trow]);
+                        if (cr) { break; }
+                    }
+                }
+            }
+        };
+
+        if (methods[action]) {
+            methods[action].call(this);
+        }
+    };
+
+
+    /**
+    * Iterate over each widget above the column and row specified.
+    *
+    * @method for_each_widget_above
+    * @param {Number} col The column to start iterating.
+    * @param {Number} row The row to start iterating.
+    * @param {Function} callback The function to execute on each widget
+    *  iteration. The value of `this` inside the function is the jQuery
+    *  wrapped HTMLElement.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.for_each_widget_above = function(col, row, callback) {
+        this._traversing_widgets('for_each', 'above', col, row, callback);
+        return this;
+    };
+
+
+    /**
+    * Iterate over each widget below the column and row specified.
+    *
+    * @method for_each_widget_below
+    * @param {Number} col The column to start iterating.
+    * @param {Number} row The row to start iterating.
+    * @param {Function} callback The function to execute on each widget
+    *  iteration. The value of `this` inside the function is the jQuery wrapped
+    *  HTMLElement.
+    * @return {Class} Returns the instance of the Gridster Class.
+    */
+    fn.for_each_widget_below = function(col, row, callback) {
+        this._traversing_widgets('for_each', 'below', col, row, callback);
+        return this;
+    };
+
+
+    /**
+    * Returns the highest occupied cell in the grid.
+    *
+    * @method get_highest_occupied_cell
+    * @return {Object} Returns an object with `col` and `row` numbers.
+    */
+    fn.get_highest_occupied_cell = function() {
+        var r;
+        var gm = this.gridmap;
+        var rows = [];
+        var row_in_col = [];
+        for (var c = gm.length - 1; c >= 1; c--) {
+            for (r = gm[c].length - 1; r >= 1; r--) {
+                if (this.is_widget(c, r)) {
+                    rows.push(r);
+                    row_in_col[r] = c;
+                    break;
+                }
+            }
+        }
+
+        var highest_row = Math.max.apply(Math, rows);
+
+        this.highest_occupied_cell = {
+            col: row_in_col[highest_row],
+            row: highest_row
+        };
+
+        return this.highest_occupied_cell;
+    };
+
+
+    fn.get_widgets_from = function(col, row) {
+        var ga = this.gridmap;
+        var $widgets = $();
+
+        if (col) {
+            $widgets = $widgets.add(
+                this.$widgets.filter(function() {
+                    var tcol = $(this).attr('data-col');
+                    return (tcol === col || tcol > col);
+                })
+            );
+        }
+
+        if (row) {
+            $widgets = $widgets.add(
+                this.$widgets.filter(function() {
+                    var trow = $(this).attr('data-row');
+                    return (trow === row || trow > row);
+                })
+            );
+        }
+
+        return $widgets;
+    }
+
+
+    /**
+    * Set the current height of the parent grid.
+    *
+    * @method set_dom_grid_height
+    * @return {Object} Returns the instance of the Gridster class.
+    */
+    fn.set_dom_grid_height = function() {
+        var r = this.get_highest_occupied_cell().row;
+        this.$el.css('height', r * this.min_widget_height);
+        return this;
+    };
+
+
+    /**
+    * It generates the neccessary styles to position the widgets.
+    *
+    * @method generate_stylesheet
+    * @param {Number} rows Number of columns.
+    * @param {Number} cols Number of rows.
+    * @return {Object} Returns the instance of the Gridster class.
+    */
+    fn.generate_stylesheet = function(opts) {
+        var styles = '';
+        var extra_cells = 10;
+        var max_size_y = this.options.max_size_y;
+        var max_size_x = this.options.max_size_x;
+        var i;
+        var rules;
+
+        opts || (opts = {});
+        opts.cols || (opts.cols = this.cols);
+        opts.rows || (opts.rows = this.rows);
+        opts.namespace || (opts.namespace = '');
+        opts.widget_base_dimensions ||
+            (opts.widget_base_dimensions = this.options.widget_base_dimensions);
+        opts.widget_margins ||
+            (opts.widget_margins = this.options.widget_margins);
+        opts.min_widget_width = (opts.widget_margins[0] * 2) +
+            opts.widget_base_dimensions[0];
+        opts.min_widget_height = (opts.widget_margins[1] * 2) +
+            opts.widget_base_dimensions[1];
+
+        var serialized_opts = $.param(opts);
+        // don't duplicate stylesheets for the same configuration
+        if ($.inArray(serialized_opts, Gridster.generated_stylesheets) >= 0) {
+            return false;
+        }
+
+        Gridster.generated_stylesheets.push(serialized_opts);
+
+        /* generate CSS styles for cols */
+        for (i = opts.cols + extra_cells; i >= 0; i--) {
+            styles += (opts.namespace + ' [data-col="'+ (i + 1) + '"] { left:' +
+                ((i * opts.widget_base_dimensions[0]) +
+                (i * opts.widget_margins[0]) +
+                ((i + 1) * opts.widget_margins[0])) + 'px;} ');
+        }
+
+        /* generate CSS styles for rows */
+        for (i = opts.rows + extra_cells; i >= 0; i--) {
+            styles += (opts.namespace + ' [data-row="' + (i + 1) + '"] { top:' +
+                ((i * opts.widget_base_dimensions[1]) +
+                (i * opts.widget_margins[1]) +
+                ((i + 1) * opts.widget_margins[1]) ) + 'px;} ');
+        }
+
+        for (var y = 1; y <= max_size_y; y++) {
+            styles += (opts.namespace + ' [data-sizey="' + y + '"] { height:' +
+                (y * opts.widget_base_dimensions[1] +
+                (y - 1) * (opts.widget_margins[1] * 2)) + 'px;}');
+        }
+
+        for (var x = 1; x <= max_size_x; x++) {
+            styles += (opts.namespace + ' [data-sizex="' + x + '"] { width:' +
+                (x * opts.widget_base_dimensions[0] +
+                (x - 1) * (opts.widget_margins[0] * 2)) + 'px;}');
+        }
+
+        return this.add_style_tag(styles);
+    };
+
+
+    /**
+    * Injects the given CSS as string to the head of the document.
+    *
+    * @method add_style_tag
+    * @param {String} css The styles to apply.
+    * @return {Object} Returns the instance of the Gridster class.
+    */
+    fn.add_style_tag = function(css) {
+      var d = document;
+      var tag = d.createElement('style');
+
+      d.getElementsByTagName('head')[0].appendChild(tag);
+      tag.setAttribute('type', 'text/css');
+
+      if (tag.styleSheet) {
+        tag.styleSheet.cssText = css;
+      }else{
+        tag.appendChild(document.createTextNode(css));
+      }
+      return this;
+    };
+
+
+    /**
+    * Generates a faux grid to collide with it when a widget is dragged and
+    * detect row or column that we want to go.
+    *
+    * @method generate_faux_grid
+    * @param {Number} rows Number of columns.
+    * @param {Number} cols Number of rows.
+    * @return {Object} Returns the instance of the Gridster class.
+    */
+    fn.generate_faux_grid = function(rows, cols) {
+        this.faux_grid = [];
+        this.gridmap = [];
+        var col;
+        var row;
+        for (col = cols; col > 0; col--) {
+            this.gridmap[col] = [];
+            for (row = rows; row > 0; row--) {
+                var coords = $({
+                        left: this.baseX + ((col - 1) * this.min_widget_width),
+                        top: this.baseY + (row -1) * this.min_widget_height,
+                        width: this.min_widget_width,
+                        height: this.min_widget_height,
+                        col: col,
+                        row: row,
+                        original_col: col,
+                        original_row: row
+                    }).coords();
+
+                this.gridmap[col][row] = false;
+                this.faux_grid.push(coords);
+            }
+        }
+        return this;
+    };
+
+
+    /**
+    * Recalculates the offsets for the faux grid. You need to use it when
+    * the browser is resized.
+    *
+    * @method recalculate_faux_grid
+    * @return {Object} Returns the instance of the Gridster class.
+    */
+    fn.recalculate_faux_grid = function() {
+        var aw = this.$wrapper.width();
+        this.baseX = ($(window).width() - aw) / 2;
+        this.baseY = this.$wrapper.offset().top;
+
+        $.each(this.faux_grid, $.proxy(function(i, coords) {
+            this.faux_grid[i] = coords.update({
+                left: this.baseX + (coords.data.col -1) * this.min_widget_width,
+                top: this.baseY + (coords.data.row -1) * this.min_widget_height
+            });
+
+        }, this));
+
+        return this;
+    };
+
+
+    /**
+    * Get all widgets in the DOM and register them.
+    *
+    * @method get_widgets_from_DOM
+    * @return {Object} Returns the instance of the Gridster class.
+    */
+    fn.get_widgets_from_DOM = function() {
+        this.$widgets.each($.proxy(function(i, widget) {
+            this.register_widget($(widget));
+        }, this));
+        return this;
+    };
+
+
+    /**
+    * Calculate columns and rows to be set based on the configuration
+    *  parameters, grid dimensions, etc ...
+    *
+    * @method generate_grid_and_stylesheet
+    * @return {Object} Returns the instance of the Gridster class.
+    */
+    fn.generate_grid_and_stylesheet = function() {
+        var aw = this.$wrapper.width();
+        var ah = this.$wrapper.height();
+
+        var cols = Math.floor(aw / this.min_widget_width) +
+                   this.options.extra_cols;
+        var rows = Math.floor(ah / this.min_widget_height) +
+                   this.options.extra_rows;
+
+        var actual_cols = this.$widgets.map(function() {
+            return $(this).attr('data-col');
+        });
+        actual_cols = Array.prototype.slice.call(actual_cols, 0);
+        //needed to pass tests with phantomjs
+        actual_cols.length || (actual_cols = [0]);
+
+        var actual_rows = this.$widgets.map(function() {
+            return $(this).attr('data-row');
+        });
+        actual_rows = Array.prototype.slice.call(actual_rows, 0);
+        //needed to pass tests with phantomjs
+        actual_rows.length || (actual_rows = [0]);
+
+        var min_cols = Math.max.apply(Math, actual_cols);
+        var min_rows = Math.max.apply(Math, actual_rows);
+
+        this.cols = Math.max(min_cols, cols, this.options.min_cols);
+        this.rows = Math.max(min_rows, rows, this.options.min_rows);
+
+        this.baseX = ($(window).width() - aw) / 2;
+        this.baseY = this.$wrapper.offset().top;
+
+        if (this.options.autogenerate_stylesheet) {
+            this.generate_stylesheet();
+        }
+
+        /* more faux rows that needed are created so that there are cells
+         * where drag beyond the limits */
+        return this.generate_faux_grid(this.rows, this.cols);
+    };
+
+
+    //jQuery adapter
+    $.fn.gridster = function(options) {
+     return this.each(function() {
+       if (!$(this).data('gridster')) {
+         $(this).data('gridster', new Gridster( this, options ));
+       }
+     });
+    };
+
+
+}(jQuery, window, document));
\ No newline at end of file
diff --git a/templates/project/assets/javascripts/gridster/jquery.leanModal.min.js b/templates/project/assets/javascripts/gridster/jquery.leanModal.min.js
new file mode 100644
index 0000000..a5772dd
--- /dev/null
+++ b/templates/project/assets/javascripts/gridster/jquery.leanModal.min.js
@@ -0,0 +1,5 @@
+// leanModal v1.1 by Ray Stone - http://finelysliced.com.au
+// Dual licensed under the MIT and GPL
+
+(function($){$.fn.extend({leanModal:function(options){var defaults={top:100,overlay:0.5,closeButton:null};var overlay=$("<div id='lean_overlay'></div>");$("body").append(overlay);options=$.extend(defaults,options);return this.each(function(){var o=options;$(this).click(function(e){var modal_id=$(this).attr("href");$("#lean_overlay").click(function(){close_modal(modal_id)});$(o.closeButton).click(function(){close_modal(modal_id)});var modal_height=$(modal_id).outerHeight();var modal_width=$(modal_id).outerWidth();
+$("#lean_overlay").css({"display":"block",opacity:0});$("#lean_overlay").fadeTo(200,o.overlay);$(modal_id).css({"display":"block","position":"fixed","opacity":0,"z-index":11000,"left":50+"%","margin-left":-(modal_width/2)+"px","top":o.top+"px"});$(modal_id).fadeTo(200,1);e.preventDefault()})});function close_modal(modal_id){$("#lean_overlay").fadeOut(200);$(modal_id).css({"display":"none"})}}})})(jQuery);
diff --git a/templates/project/assets/javascripts/gridster/utils.js b/templates/project/assets/javascripts/gridster/utils.js
new file mode 100755
index 0000000..5f340b3
--- /dev/null
+++ b/templates/project/assets/javascripts/gridster/utils.js
@@ -0,0 +1,41 @@
+;(function(window, undefined) {
+    /* Debounce and throttle functions taken from underscore.js */
+    window.debounce = function(func, wait, immediate) {
+        var timeout;
+        return function() {
+          var context = this, args = arguments;
+          var later = function() {
+            timeout = null;
+            if (!immediate) func.apply(context, args);
+          };
+          if (immediate && !timeout) func.apply(context, args);
+          clearTimeout(timeout);
+          timeout = setTimeout(later, wait);
+        };
+    };
+
+
+    window.throttle = function(func, wait) {
+        var context, args, timeout, throttling, more, result;
+        var whenDone = debounce(
+            function(){ more = throttling = false; }, wait);
+        return function() {
+          context = this; args = arguments;
+          var later = function() {
+            timeout = null;
+            if (more) func.apply(context, args);
+            whenDone();
+          };
+          if (!timeout) timeout = setTimeout(later, wait);
+          if (throttling) {
+            more = true;
+          } else {
+            result = func.apply(context, args);
+          }
+          whenDone();
+          throttling = true;
+          return result;
+        };
+    };
+
+})(window);
diff --git a/templates/project/assets/javascripts/jquery.knob.js b/templates/project/assets/javascripts/jquery.knob.js
new file mode 100644
index 0000000..3224638
--- /dev/null
+++ b/templates/project/assets/javascripts/jquery.knob.js
@@ -0,0 +1,646 @@
+/*!jQuery Knob*/
+/**
+ * Downward compatible, touchable dial
+ *
+ * Version: 1.2.0 (15/07/2012)
+ * Requires: jQuery v1.7+
+ *
+ * Copyright (c) 2012 Anthony Terrien
+ * Under MIT and GPL licenses:
+ *  http://www.opensource.org/licenses/mit-license.php
+ *  http://www.gnu.org/licenses/gpl.html
+ *
+ * Thanks to vor, eskimoblood, spiffistan, FabrizioC
+ */
+$(function () {
+
+    /**
+     * Kontrol library
+     */
+    "use strict";
+
+    /**
+     * Definition of globals and core
+     */
+    var k = {}, // kontrol
+        max = Math.max,
+        min = Math.min;
+
+    k.c = {};
+    k.c.d = $(document);
+    k.c.t = function (e) {
+        return e.originalEvent.touches.length - 1;
+    };
+
+    /**
+     * Kontrol Object
+     *
+     * Definition of an abstract UI control
+     *
+     * Each concrete component must call this one.
+     * <code>
+     * k.o.call(this);
+     * </code>
+     */
+    k.o = function () {
+        var s = this;
+
+        this.o = null; // array of options
+        this.$ = null; // jQuery wrapped element
+        this.i = null; // mixed HTMLInputElement or array of HTMLInputElement
+        this.g = null; // 2D graphics context for 'pre-rendering'
+        this.v = null; // value ; mixed array or integer
+        this.cv = null; // change value ; not commited value
+        this.x = 0; // canvas x position
+        this.y = 0; // canvas y position
+        this.$c = null; // jQuery canvas element
+        this.c = null; // rendered canvas context
+        this.t = 0; // touches index
+        this.isInit = false;
+        this.fgColor = null; // main color
+        this.pColor = null; // previous color
+        this.dH = null; // draw hook
+        this.cH = null; // change hook
+        this.eH = null; // cancel hook
+        this.rH = null; // release hook
+
+        this.run = function () {
+            var cf = function (e, conf) {
+                var k;
+                for (k in conf) {
+                    s.o[k] = conf[k];
+                }
+                s.init();
+                s._configure()
+                 ._draw();
+            };
+
+            if(this.$.data('kontroled')) return;
+            this.$.data('kontroled', true);
+
+            this.extend();
+            this.o = $.extend(
+                {
+                    // Config
+                    min : this.$.data('min') || 0,
+                    max : this.$.data('max') || 100,
+                    stopper : true,
+                    readOnly : this.$.data('readonly'),
+
+                    // UI
+                    cursor : (this.$.data('cursor') === true && 30)
+                                || this.$.data('cursor')
+                                || 0,
+                    thickness : this.$.data('thickness') || 0.35,
+                    width : this.$.data('width') || 200,
+                    height : this.$.data('height') || 200,
+                    displayInput : this.$.data('displayinput') == null || this.$.data('displayinput'),
+                    displayPrevious : this.$.data('displayprevious'),
+                    fgColor : this.$.data('fgcolor') || '#87CEEB',
+                    inline : false,
+
+                    // Hooks
+                    draw : null, // function () {}
+                    change : null, // function (value) {}
+                    cancel : null, // function () {}
+                    release : null // function (value) {}
+                }, this.o
+            );
+
+            // routing value
+            if(this.$.is('fieldset')) {
+
+                // fieldset = array of integer
+                this.v = {};
+                this.i = this.$.find('input')
+                this.i.each(function(k) {
+                    var $this = $(this);
+                    s.i[k] = $this;
+                    s.v[k] = $this.val();
+
+                    $this.bind(
+                        'change'
+                        , function () {
+                            var val = {};
+                            val[k] = $this.val();
+                            s.val(val);
+                        }
+                    );
+                });
+                this.$.find('legend').remove();
+
+            } else {
+                // input = integer
+                this.i = this.$;
+                this.v = this.$.val();
+                (this.v == '') && (this.v = this.o.min);
+
+                this.$.bind(
+                    'change'
+                    , function () {
+                        s.val(s.$.val());
+                    }
+                );
+            }
+
+            (!this.o.displayInput) && this.$.hide();
+
+            this.$c = $('<canvas width="' +
+                            this.o.width + 'px" height="' +
+                            this.o.height + 'px"></canvas>');
+            this.c = this.$c[0].getContext("2d");
+
+            this.$
+                .wrap($('<div style="' + (this.o.inline ? 'display:inline;' : '') +
+                        'width:' + this.o.width + 'px;height:' +
+                        this.o.height + 'px;"></div>'))
+                .before(this.$c);
+
+            if (this.v instanceof Object) {
+                this.cv = {};
+                this.copy(this.v, this.cv);
+            } else {
+                this.cv = this.v;
+            }
+
+            this.$
+                .bind("configure", cf)
+                .parent()
+                .bind("configure", cf);
+
+            this._listen()
+                ._configure()
+                ._xy()
+                .init();
+
+            this.isInit = true;
+
+            this._draw();
+
+            return this;
+        };
+
+        this._draw = function () {
+
+            // canvas pre-rendering
+            var d = true,
+                c = document.createElement('canvas');
+
+            c.width = s.o.width;
+            c.height = s.o.height;
+            s.g = c.getContext('2d');
+
+            s.clear();
+
+            s.dH
+            && (d = s.dH());
+
+            (d !== false) && s.draw();
+
+            s.c.drawImage(c, 0, 0);
+            c = null;
+        };
+
+        this._touch = function (e) {
+
+            var touchMove = function (e) {
+
+                var v = s.xy2val(
+                            e.originalEvent.touches[s.t].pageX,
+                            e.originalEvent.touches[s.t].pageY
+                            );
+
+                if (v == s.cv) return;
+
+                if (
+                    s.cH
+                    && (s.cH(v) === false)
+                ) return;
+
+
+                s.change(v);
+                s._draw();
+            };
+
+            // get touches index
+            this.t = k.c.t(e);
+
+            // First touch
+            touchMove(e);
+
+            // Touch events listeners
+            k.c.d
+                .bind("touchmove.k", touchMove)
+                .bind(
+                    "touchend.k"
+                    , function () {
+                        k.c.d.unbind('touchmove.k touchend.k');
+
+                        if (
+                            s.rH
+                            && (s.rH(s.cv) === false)
+                        ) return;
+
+                        s.val(s.cv);
+                    }
+                );
+
+            return this;
+        };
+
+        this._mouse = function (e) {
+
+            var mouseMove = function (e) {
+                var v = s.xy2val(e.pageX, e.pageY);
+                if (v == s.cv) return;
+
+                if (
+                    s.cH
+                    && (s.cH(v) === false)
+                ) return;
+
+                s.change(v);
+                s._draw();
+            };
+
+            // First click
+            mouseMove(e);
+
+            // Mouse events listeners
+            k.c.d
+                .bind("mousemove.k", mouseMove)
+                .bind(
+                    // Escape key cancel current change
+                    "keyup.k"
+                    , function (e) {
+                        if (e.keyCode === 27) {
+                            k.c.d.unbind("mouseup.k mousemove.k keyup.k");
+
+                            if (
+                                s.eH
+                                && (s.eH() === false)
+                            ) return;
+
+                            s.cancel();
+                        }
+                    }
+                )
+                .bind(
+                    "mouseup.k"
+                    , function (e) {
+                        k.c.d.unbind('mousemove.k mouseup.k keyup.k');
+
+                        if (
+                            s.rH
+                            && (s.rH(s.cv) === false)
+                        ) return;
+
+                        s.val(s.cv);
+                    }
+                );
+
+            return this;
+        };
+
+        this._xy = function () {
+            var o = this.$c.offset();
+            this.x = o.left;
+            this.y = o.top;
+            return this;
+        };
+
+        this._listen = function () {
+
+            if (!this.o.readOnly) {
+                this.$c
+                    .bind(
+                        "mousedown"
+                        , function (e) {
+                            e.preventDefault();
+                            s._xy()._mouse(e);
+                         }
+                    )
+                    .bind(
+                        "touchstart"
+                        , function (e) {
+                            e.preventDefault();
+                            s._xy()._touch(e);
+                         }
+                    );
+                this.listen();
+            } else {
+                this.$.attr('readonly', 'readonly');
+            }
+
+            return this;
+        };
+
+        this._configure = function () {
+
+            // Hooks
+            if (this.o.draw) this.dH = this.o.draw;
+            if (this.o.change) this.cH = this.o.change;
+            if (this.o.cancel) this.eH = this.o.cancel;
+            if (this.o.release) this.rH = this.o.release;
+
+            if (this.o.displayPrevious) {
+                this.pColor = this.h2rgba(this.o.fgColor, "0.4");
+                this.fgColor = this.h2rgba(this.o.fgColor, "0.6");
+            } else {
+                this.fgColor = this.o.fgColor;
+            }
+
+            return this;
+        };
+
+        this._clear = function () {
+            this.$c[0].width = this.$c[0].width;
+        };
+
+        // Abstract methods
+        this.listen = function () {}; // on start, one time
+        this.extend = function () {}; // each time configure triggered
+        this.init = function () {}; // each time configure triggered
+        this.change = function (v) {}; // on change
+        this.val = function (v) {}; // on release
+        this.xy2val = function (x, y) {}; //
+        this.draw = function () {}; // on change / on release
+        this.clear = function () { this._clear(); };
+
+        // Utils
+        this.h2rgba = function (h, a) {
+            var rgb;
+            h = h.substring(1,7)
+            rgb = [parseInt(h.substring(0,2),16)
+                   ,parseInt(h.substring(2,4),16)
+                   ,parseInt(h.substring(4,6),16)];
+            return "rgba(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + "," + a + ")";
+        };
+
+        this.copy = function (f, t) {
+            for (var i in f) { t[i] = f[i]; }
+        };
+    };
+
+
+    /**
+     * k.Dial
+     */
+    k.Dial = function () {
+        k.o.call(this);
+
+        this.startAngle = null;
+        this.xy = null;
+        this.radius = null;
+        this.lineWidth = null;
+        this.cursorExt = null;
+        this.w2 = null;
+        this.PI2 = 2*Math.PI;
+
+        this.extend = function () {
+            this.o = $.extend(
+                {
+                    bgColor : this.$.data('bgcolor') || '#EEEEEE',
+                    angleOffset : this.$.data('angleoffset') || 0,
+                    angleArc : this.$.data('anglearc') || 360,
+                    inline : true
+                }, this.o
+            );
+        };
+
+        this.val = function (v) {
+            if (null != v) {
+                this.cv = this.o.stopper ? max(min(v, this.o.max), this.o.min) : v;
+                this.v = this.cv;
+                this.$.val(this.v);
+                this._draw();
+            } else {
+                return this.v;
+            }
+        };
+
+        this.xy2val = function (x, y) {
+            var a, ret;
+
+            a = Math.atan2(
+                        x - (this.x + this.w2)
+                        , - (y - this.y - this.w2)
+                    ) - this.angleOffset;
+
+            if(this.angleArc != this.PI2 && (a < 0) && (a > -0.5)) {
+                // if isset angleArc option, set to min if .5 under min
+                a = 0;
+            } else if (a < 0) {
+                a += this.PI2;
+            }
+
+            ret = ~~ (0.5 + (a * (this.o.max - this.o.min) / this.angleArc))
+                    + this.o.min;
+
+            this.o.stopper
+            && (ret = max(min(ret, this.o.max), this.o.min));
+
+            return ret;
+        };
+
+        this.listen = function () {
+            // bind MouseWheel
+            var s = this,
+                mw = function (e) {
+                            e.preventDefault();
+
+                            var ori = e.originalEvent
+                                ,deltaX = ori.detail || ori.wheelDeltaX
+                                ,deltaY = ori.detail || ori.wheelDeltaY
+                                ,v = parseInt(s.$.val()) + (deltaX>0 || deltaY>0 ? 1 : deltaX<0 || deltaY<0 ? -1 : 0);
+
+                            if (
+                                s.cH
+                                && (s.cH(v) === false)
+                            ) return;
+
+                            s.val(v);
+                        }
+                , kval, to, m = 1, kv = {37:-1, 38:1, 39:1, 40:-1};
+
+            this.$
+                .bind(
+                    "keydown"
+                    ,function (e) {
+                        var kc = e.keyCode;
+                        kval = parseInt(String.fromCharCode(kc));
+
+                        if (isNaN(kval)) {
+
+                            (kc !== 13)         // enter
+                            && (kc !== 8)       // bs
+                            && (kc !== 9)       // tab
+                            && (kc !== 189)     // -
+                            && e.preventDefault();
+
+                            // arrows
+                            if ($.inArray(kc,[37,38,39,40]) > -1) {
+                                e.preventDefault();
+
+                                var v = parseInt(s.$.val()) + kv[kc] * m;
+
+                                s.o.stopper
+                                && (v = max(min(v, s.o.max), s.o.min));
+
+                                s.change(v);
+                                s._draw();
+
+                                // long time keydown speed-up
+                                to = window.setTimeout(
+                                    function () { m*=2; }
+                                    ,30
+                                );
+                            }
+                        }
+                    }
+                )
+                .bind(
+                    "keyup"
+                    ,function (e) {
+                        if (isNaN(kval)) {
+                            if (to) {
+                                window.clearTimeout(to);
+                                to = null;
+                                m = 1;
+                                s.val(s.$.val());
+                            }
+                        } else {
+                            // kval postcond
+                            (s.$.val() > s.o.max && s.$.val(s.o.max))
+                            || (s.$.val() < s.o.min && s.$.val(s.o.min));
+                        }
+
+                    }
+                );
+
+            this.$c.bind("mousewheel DOMMouseScroll", mw);
+            this.$.bind("mousewheel DOMMouseScroll", mw)
+        };
+
+        this.init = function () {
+
+            if (
+                this.v < this.o.min
+                || this.v > this.o.max
+            ) this.v = this.o.min;
+
+            this.$.val(this.v);
+            this.w2 = this.o.width / 2;
+            this.cursorExt = this.o.cursor / 100;
+            this.xy = this.w2;
+            this.lineWidth = this.xy * this.o.thickness;
+            this.radius = this.xy - this.lineWidth / 2;
+
+            this.o.angleOffset
+            && (this.o.angleOffset = isNaN(this.o.angleOffset) ? 0 : this.o.angleOffset);
+
+            this.o.angleArc
+            && (this.o.angleArc = isNaN(this.o.angleArc) ? this.PI2 : this.o.angleArc);
+
+            // deg to rad
+            this.angleOffset = this.o.angleOffset * Math.PI / 180;
+            this.angleArc = this.o.angleArc * Math.PI / 180;
+
+            // compute start and end angles
+            this.startAngle = 1.5 * Math.PI + this.angleOffset;
+            this.endAngle = 1.5 * Math.PI + this.angleOffset + this.angleArc;
+
+            var s = max(
+                            String(Math.abs(this.o.max)).length
+                            , String(Math.abs(this.o.min)).length
+                            , 2
+                            ) + 2;
+
+            this.o.displayInput
+                && this.i.css({
+                        'width' : ((this.o.width / 2 + 4) >> 0) + 'px'
+                        ,'height' : ((this.o.width / 3) >> 0) + 'px'
+                        ,'position' : 'absolute'
+                        ,'vertical-align' : 'middle'
+                        ,'margin-top' : ((this.o.width / 3) >> 0) + 'px'
+                        ,'margin-left' : '-' + ((this.o.width * 3 / 4 + 2) >> 0) + 'px'
+                        ,'border' : 0
+                        ,'background' : 'none'
+                        ,'font' : 'bold ' + ((this.o.width / s) >> 0) + 'px Arial'
+                        ,'text-align' : 'center'
+                        ,'color' : this.o.fgColor
+                        ,'padding' : '0px'
+                        ,'-webkit-appearance': 'none'
+                        })
+                || this.i.css({
+                        'width' : '0px'
+                        ,'visibility' : 'hidden'
+                        });
+        };
+
+        this.change = function (v) {
+            this.cv = v;
+            this.$.val(v);
+        };
+
+        this.angle = function (v) {
+            return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min);
+        };
+
+        this.draw = function () {
+
+            var c = this.g,                 // context
+                a = this.angle(this.cv)    // Angle
+                , sat = this.startAngle     // Start angle
+                , eat = sat + a             // End angle
+                , sa, ea                    // Previous angles
+                , r = 1;
+
+            c.lineWidth = this.lineWidth;
+
+            this.o.cursor
+                && (sat = eat - this.cursorExt)
+                && (eat = eat + this.cursorExt);
+
+            c.beginPath();
+                c.strokeStyle = this.o.bgColor;
+                c.arc(this.xy, this.xy, this.radius, this.endAngle, this.startAngle, true);
+            c.stroke();
+
+            if (this.o.displayPrevious) {
+                ea = this.startAngle + this.angle(this.v);
+                sa = this.startAngle;
+                this.o.cursor
+                    && (sa = ea - this.cursorExt)
+                    && (ea = ea + this.cursorExt);
+
+                c.beginPath();
+                    c.strokeStyle = this.pColor;
+                    c.arc(this.xy, this.xy, this.radius, sa, ea, false);
+                c.stroke();
+                r = (this.cv == this.v);
+            }
+
+            c.beginPath();
+                c.strokeStyle = r ? this.o.fgColor : this.fgColor ;
+                c.arc(this.xy, this.xy, this.radius, sat, eat, false);
+            c.stroke();
+        };
+
+        this.cancel = function () {
+            this.val(this.v);
+        };
+    };
+
+    $.fn.dial = $.fn.knob = function (o) {
+        return this.each(
+            function () {
+                var d = new k.Dial();
+                d.o = o;
+                d.$ = $(this);
+                d.run();
+            }
+        ).parent();
+    };
+
+});
\ No newline at end of file
diff --git a/templates/project/public/stylesheets/application.scss b/templates/project/assets/stylesheets/application.scss
index a0a105a..c3b2a67 100644
--- a/templates/project/public/stylesheets/application.scss
+++ b/templates/project/assets/stylesheets/application.scss
@@ -1,3 +1,7 @@
+/*
+  //=require_directory .
+  //=require_tree ../../widgets
+*/
 // ----------------------------------------------------------------------------
 // Sass declarations
 // ----------------------------------------------------------------------------
@@ -39,7 +43,7 @@ html {
 
 body { 
   margin: 0; 
-  background: #fff; 
+  background-color: $background-color;
   font-size: 20px;
   color: $text-color;
   font-family: 'Open Sans', "Helvetica Neue", Helvetica, Arial, sans-serif;
@@ -49,6 +53,11 @@ b, strong {
   font-weight: bold; 
 }
 
+a {
+  text-decoration: none;
+  color: inherit;
+}
+
 img { 
   border: 0; 
   -ms-interpolation-mode: bicubic; 
@@ -103,24 +112,30 @@ h3 {
 // ----------------------------------------------------------------------------
 // Base widget styles
 // ----------------------------------------------------------------------------
-#container { 
-  padding: 5px 0;
+.gridster {
+  margin: 0px auto;
 }
 
 .list-nostyle {
   list-style: none;
 }
 
-.widget-container {
-  float: left;
+.gridster ul {
+  list-style: none;
+}
+
+.gs_w {
   width: 100%;
+  display: table;
+  cursor: pointer;
 }
 
-.widget { 
-  padding: 20px 5%;
-  margin: 5px;
+.widget {
+  padding: 25px 12px;
   text-align: center;
-  background-color: $background-color;
+  width: 100%;
+  display: table-cell;
+  vertical-align: middle;
 }
 
 .widget.status-warning {
@@ -155,81 +170,55 @@ h3 {
   font-size: 15px;
 }
 
-// ----------------------------------------------------------------------------
-// Media queries: adjust number of columns based on screen width
-// ----------------------------------------------------------------------------
-@media only screen and (min-width: 480px) {
-  // # of columns = 2
-  // column-1     = 50%
-  // column-2     = 50%
-  .widget-container {
-    width: 50%;
-  }
-  .widget-value {
-    font-size: 40px;
-  }
+#save-gridster {
+  display: none;
+  position: fixed;
+  top: 0;
+  margin: 0px auto;
+  left: 50%;
+  z-index: 1000;
+  background: black;
+  width: 190px;
+  text-align: center;
+  border: 1px solid white;
+  border-top: 0px;
+  margin-left: -95px;
+  padding: 15px;
 }
-@media only screen and (min-width: 768px) {
-  // # of columns = 3
-  // column-1     = 33%
-  // column-2     = 33%
-  // column-3     = 33% 
-  .widget-container:nth-child(3n+1) {
-    width: 33%;
-  }
-  .widget-container:nth-child(3n+2) {
-    width: 33%;
-  }
-  .widget-container:nth-child(3n+3) {
-    width: 33%;
-  }
-} 
-@media only screen and (min-width: 992px) {
-  // # of columns = 4
-  // column-1     = 25%
-  // column-2     = 25%
-  // column-3     = 25%  
-  // column-4     = 25%  
-  .widget-container:nth-child(4n+1) {
-    width: 25%;
-  }
-  .widget-container:nth-child(4n+2) {
-    width: 25%;
-  }
-  .widget-container:nth-child(4n+3) {
-    width: 25%;
-  }
-  .widget-container:nth-child(4n+4) {
-    width: 25%;
-  }
-  .widget-value {
-    font-size: 30px;
-  }
+
+#save-gridster:hover {
+  padding-top: 25px;
 }
-@media only screen and (min-width: 1382px) {
-  // # of columns = 5
-  // column-1     = 20%
-  // column-2     = 20%
-  // column-3     = 20%  
-  // column-4     = 20%  
-  // column-5     = 20%  
-  .widget-container:nth-child(5n+1) {
-    width: 20%;
-  }
-  .widget-container:nth-child(5n+2) {
-    width: 20%;
-  }
-  .widget-container:nth-child(5n+3) {
-    width: 20%;
-  }
-  .widget-container:nth-child(5n+4) {
-    width: 20%;
-  }
-  .widget-container:nth-child(5n+5) {
-    width: 20%;
+
+#saving-instructions {
+  display: none;
+  padding: 10px;
+  width: 500px;
+  height: 122px;
+  z-index: 1000;
+  background: white;
+  top: 100px;
+  color: black;
+
+  textarea {
+    white-space: nowrap;
+    width: 494px;
+    height: 80px;
   }
 }
 
+#lean_overlay {
+    position: fixed;
+    z-index:100;
+    top: 0px;
+    left: 0px;
+    height:100%;
+    width:100%;
+    background: #000;
+    display: none;
+}
+
+
 // ----------------------------------------------------------------------------
 // Clearfix
 // ----------------------------------------------------------------------------
diff --git a/templates/project/public/stylesheets/font-awesome.css b/templates/project/assets/stylesheets/font-awesome.css
index 247d7b7..c642925 100644
--- a/templates/project/public/stylesheets/font-awesome.css
+++ b/templates/project/assets/stylesheets/font-awesome.css
@@ -23,8 +23,8 @@
     */
 @font-face {
   font-family: "FontAwesome";
-  src: url('/fonts/fontawesome-webfont.eot');
-  src: url('/fonts/fontawesome-webfont.eot?#iefix') format('eot'), url('/fonts/fontawesome-webfont.woff') format('woff'), url('/fonts/fontawesome-webfont.ttf') format('truetype'), url('/fonts/fontawesome-webfont.svg#FontAwesome') format('svg');
+  src: url('/assets/fontawesome-webfont.eot');
+  src: url('/assets/fontawesome-webfont.eot?#iefix') format('eot'), url('/assets/fontawesome-webfont.woff') format('woff'), url('/assets/fontawesome-webfont.ttf') format('truetype'), url('/assets/fontawesome-webfont.svg#FontAwesome') format('svg');
   font-weight: normal;
   font-style: normal;
 }
diff --git a/templates/project/assets/stylesheets/jquery.gridster.css b/templates/project/assets/stylesheets/jquery.gridster.css
new file mode 100755
index 0000000..d512484
--- /dev/null
+++ b/templates/project/assets/stylesheets/jquery.gridster.css
@@ -0,0 +1,57 @@
+/*! gridster.js - v0.1.0 - 2012-08-14
+* http://gridster.net/
+* Copyright (c) 2012 ducksboard; Licensed MIT */
+
+.gridster {
+    position:relative;
+}
+
+.gridster > * {
+    margin: 0 auto;
+    -webkit-transition: height .4s;
+    -moz-transition: height .4s;
+    -o-transition: height .4s;
+    -ms-transition: height .4s;
+    transition: height .4s;
+}
+
+.gridster .gs_w{
+    z-index: 2;
+    position: absolute;
+}
+
+.ready .gs_w:not(.preview-holder) {
+    -webkit-transition: opacity .3s, left .3s, top .3s;
+    -moz-transition: opacity .3s, left .3s, top .3s;
+    -o-transition: opacity .3s, left .3s, top .3s;
+    transition: opacity .3s, left .3s, top .3s;
+}
+
+.gridster .preview-holder {
+    z-index: 1;
+    position: absolute;
+    background-color: #fff;
+    border-color: #fff;
+    opacity: 0.3;
+}
+
+.gridster .player-revert {
+    z-index: 10!important;
+    -webkit-transition: left .3s, top .3s!important;
+    -moz-transition: left .3s, top .3s!important;
+    -o-transition: left .3s, top .3s!important;
+    transition:  left .3s, top .3s!important;
+}
+
+.gridster .dragging {
+    z-index: 10!important;
+    -webkit-transition: all 0s !important;
+    -moz-transition: all 0s !important;
+    -o-transition: all 0s !important;
+    transition: all 0s !important;
+}
+
+/* Uncomment this if you set helper : "clone" in draggable options */
+/*.gridster .player {
+  opacity:0;
+}*/
\ No newline at end of file
diff --git a/templates/project/config.ru b/templates/project/config.ru
index a3a74de..6e1076a 100644
--- a/templates/project/config.ru
+++ b/templates/project/config.ru
@@ -2,6 +2,17 @@ require 'dashing'
 
 configure do
   set :auth_token, 'YOUR_AUTH_TOKEN'
+
+  helpers do
+    def protected!
+     # Put any authentication code you want in here.
+     # This method is run before accessing any resource.
+    end
+  end
+end
+
+map Sinatra::Application.assets_prefix do
+  run Sinatra::Application.sprockets
 end
 
 run Sinatra::Application
\ No newline at end of file
diff --git a/templates/project/dashboards/layout.erb b/templates/project/dashboards/layout.erb
index 97cb96d..23d3c9a 100644
--- a/templates/project/dashboards/layout.erb
+++ b/templates/project/dashboards/layout.erb
@@ -8,34 +8,25 @@
 
   <title><%= yield_content(:title) %></title>
 
-  <script type="text/javascript"><%= javascripts %></script>
-  <script type="text/javascript" src="/javascripts/jquery.knob.js"></script>
-  <script type="text/javascript" src="/javascripts/jquery.masonry.min.js"></script>
+  <!-- The javascript and css are managed by sprockets. The files can be found in the /assets folder-->
+  <script type="text/javascript" src="/assets/application.js"></script>
+  <link rel="stylesheet" href="/assets/application.css">
 
-  <style><%= stylesheets %></style>
   <link href='http://fonts.googleapis.com/css?family=Open+Sans:300,400,600,700' rel='stylesheet' type='text/css'>
-  <link rel="stylesheet" href="/stylesheets/font-awesome.css">
-  <link rel="icon" href="/images/favicon.ico">  
+  <link rel="icon" href="/assets/favicon.ico">
 
-  <script type="text/javascript">
-    var relayout = function() {
-      $('#container ul').masonry({ itemSelector: '.widget-container' });
-    }
-
-    Dashing.Widget.on('ready', function(){
-      setTimeout(function(){
-        relayout();
-      }, 0);
-    });
-
-    $(window).resize(relayout);
-  </script>
 </head>
-<body>
-
-  <div id="container">
-    <%= yield %>
-  </div>
-
-</body>
+  <body>
+    <div id="container">
+      <%= yield %>
+    </div>
+  
+    <% if development? %>
+      <div id="saving-instructions">
+        <p>Paste the following at the top of <i><%= params[:dashboard] %>.erb</i></p>
+        <textarea id="gridster-code"></textarea>
+      </div>
+      <a href="#saving-instructions" id="save-gridster">Save this layout</a>
+    <% end %>
+  </body>
 </html>
\ No newline at end of file
diff --git a/templates/project/public/.empty_directory b/templates/project/public/.empty_directory
new file mode 100644
index 0000000..3da7f49
--- /dev/null
+++ b/templates/project/public/.empty_directory
@@ -0,0 +1 @@
+.empty_directory
\ No newline at end of file
diff --git a/templates/project/public/javascripts/jquery.knob.js b/templates/project/public/javascripts/jquery.knob.js
deleted file mode 100644
index 0c5b8f1..0000000
--- a/templates/project/public/javascripts/jquery.knob.js
+++ /dev/null
@@ -1,28 +0,0 @@
-/*!jQuery Knob*/
-/**
- * Downward compatible, touchable dial
- *
- * Version: 1.2.0 (15/07/2012)
- * Requires: jQuery v1.7+
- *
- * Copyright (c) 2012 Anthony Terrien
- * Under MIT and GPL licenses:
- *  http://www.opensource.org/licenses/mit-license.php
- *  http://www.gnu.org/licenses/gpl.html
- *
- * Thanks to vor, eskimoblood, spiffistan, FabrizioC
- */
-$(function(){"use strict";var k={},max=Math.max,min=Math.min;k.c={};k.c.d=$(document);k.c.t=function(e){return e.originalEvent.touches.length-1;};k.o=function(){var s=this;this.o=null;this.$=null;this.i=null;this.g=null;this.v=null;this.cv=null;this.x=0;this.y=0;this.$c=null;this.c=null;this.t=0;this.isInit=false;this.fgColor=null;this.pColor=null;this.dH=null;this.cH=null;this.eH=null;this.rH=null;this.run=function(){var cf=function(e,conf){var k;for(k in conf){s.o[k]=conf[k];}
-s.init();s._configure()._draw();};if(this.$.data('kontroled'))return;this.$.data('kontroled',true);this.extend();this.o=$.extend({min:this.$.data('min')||0,max:this.$.data('max')||100,stopper:true,readOnly:this.$.data('readonly'),cursor:(this.$.data('cursor')===true&&30)||this.$.data('cursor')||0,thickness:this.$.data('thickness')||0.35,width:this.$.data('width')||200,height:this.$.data('height')||200,displayInput:this.$.data('displayinput')==null||this.$.data('displayinput'),displayPrevious:this.$.data('displayprevious'),fgColor:this.$.data('fgcolor')||'#87CEEB',inline:false,draw:null,change:null,cancel:null,release:null},this.o);if(this.$.is('fieldset')){this.v={};this.i=this.$.find('input')
-this.i.each(function(k){var $this=$(this);s.i[k]=$this;s.v[k]=$this.val();$this.bind('change',function(){var val={};val[k]=$this.val();s.val(val);});});this.$.find('legend').remove();}else{this.i=this.$;this.v=this.$.val();(this.v=='')&&(this.v=this.o.min);this.$.bind('change',function(){s.val(s.$.val());});}
-(!this.o.displayInput)&&this.$.hide();this.$c=$('<canvas width="'+
-this.o.width+'px" height="'+
-this.o.height+'px"></canvas>');this.c=this.$c[0].getContext("2d");this.$.wrap($('<div style="'+(this.o.inline?'display:inline;':'')+'width:'+this.o.width+'px;height:'+
-this.o.height+'px;"></div>')).before(this.$c);if(this.v instanceof Object){this.cv={};this.copy(this.v,this.cv);}else{this.cv=this.v;}
-this.$.bind("configure",cf).parent().bind("configure",cf);this._listen()._configure()._xy().init();this.isInit=true;this._draw();return this;};this._draw=function(){var d=true,c=document.createElement('canvas');c.width=s.o.width;c.height=s.o.height;s.g=c.getContext('2d');s.clear();s.dH&&(d=s.dH());(d!==false)&&s.draw();s.c.drawImage(c,0,0);c=null;};this._touch=function(e){var touchMove=function(e){var v=s.xy2val(e.originalEvent.touches[s.t].pageX,e.originalEvent.touches[s.t].pageY);if(v==s.cv)return;if(s.cH&&(s.cH(v)===false))return;s.change(v);s._draw();};this.t=k.c.t(e);touchMove(e);k.c.d.bind("touchmove.k",touchMove).bind("touchend.k",function(){k.c.d.unbind('touchmove.k touchend.k');if(s.rH&&(s.rH(s.cv)===false))return;s.val(s.cv);});return this;};this._mouse=function(e){var mouseMove=function(e){var v=s.xy2val(e.pageX,e.pageY);if(v==s.cv)return;if(s.cH&&(s.cH(v)===false))return;s.change(v);s._draw();};mouseMove(e);k.c.d.bind("mousemove.k",mouseMove).bind("keyup.k",function(e){if(e.keyCode===27){k.c.d.unbind("mouseup.k mousemove.k keyup.k");if(s.eH&&(s.eH()===false))return;s.cancel();}}).bind("mouseup.k",function(e){k.c.d.unbind('mousemove.k mouseup.k keyup.k');if(s.rH&&(s.rH(s.cv)===false))return;s.val(s.cv);});return this;};this._xy=function(){var o=this.$c.offset();this.x=o.left;this.y=o.top;return this;};this._listen=function(){if(!this.o.readOnly){this.$c.bind("mousedown",function(e){e.preventDefault();s._xy()._mouse(e);}).bind("touchstart",function(e){e.preventDefault();s._xy()._touch(e);});this.listen();}else{this.$.attr('readonly','readonly');}
-return this;};this._configure=function(){if(this.o.draw)this.dH=this.o.draw;if(this.o.change)this.cH=this.o.change;if(this.o.cancel)this.eH=this.o.cancel;if(this.o.release)this.rH=this.o.release;if(this.o.displayPrevious){this.pColor=this.h2rgba(this.o.fgColor,"0.4");this.fgColor=this.h2rgba(this.o.fgColor,"0.6");}else{this.fgColor=this.o.fgColor;}
-return this;};this._clear=function(){this.$c[0].width=this.$c[0].width;};this.listen=function(){};this.extend=function(){};this.init=function(){};this.change=function(v){};this.val=function(v){};this.xy2val=function(x,y){};this.draw=function(){};this.clear=function(){this._clear();};this.h2rgba=function(h,a){var rgb;h=h.substring(1,7)
-rgb=[parseInt(h.substring(0,2),16),parseInt(h.substring(2,4),16),parseInt(h.substring(4,6),16)];return"rgba("+rgb[0]+","+rgb[1]+","+rgb[2]+","+a+")";};this.copy=function(f,t){for(var i in f){t[i]=f[i];}};};k.Dial=function(){k.o.call(this);this.startAngle=null;this.xy=null;this.radius=null;this.lineWidth=null;this.cursorExt=null;this.w2=null;this.PI2=2*Math.PI;this.extend=function(){this.o=$.extend({bgColor:this.$.data('bgcolor')||'#EEEEEE',angleOffset:this.$.data('angleoffset')||0,angleArc:this.$.data('anglearc')||360,inline:true},this.o);};this.val=function(v){if(null!=v){this.cv=this.o.stopper?max(min(v,this.o.max),this.o.min):v;this.v=this.cv;this.$.val(this.v);this._draw();}else{return this.v;}};this.xy2val=function(x,y){var a,ret;a=Math.atan2(x-(this.x+this.w2),-(y-this.y-this.w2))-this.angleOffset;if(this.angleArc!=this.PI2&&(a<0)&&(a>-0.5)){a=0;}else if(a<0){a+=this.PI2;}
-ret=~~(0.5+(a*(this.o.max-this.o.min)/this.angleArc))
-+this.o.min;this.o.stopper&&(ret=max(min(ret,this.o.max),this.o.min));return ret;};this.listen=function(){var s=this,mw=function(e){e.preventDefault();var ori=e.originalEvent,deltaX=ori.detail||ori.wheelDeltaX,deltaY=ori.detail||ori.wheelDeltaY,v=parseInt(s.$.val())+(deltaX>0||deltaY>0?1:deltaX<0||deltaY<0?-1:0);if(s.cH&&(s.cH(v)===false))return;s.val(v);},kval,to,m=1,kv={37:-1,38:1,39:1,40:-1};this.$.bind("keydown",function(e){var kc=e.keyCode;kval=parseInt(String.fromCharCode(kc));if(isNaN(kval)){(kc!==13)&&(kc!==8)&&(kc!==9)&&(kc!==189)&&e.preventDefault();if($.inArray(kc,[37,38,39,40])>-1){e.preventDefault();var v=parseInt(s.$.val())+kv[kc]*m;s.o.stopper&&(v=max(min(v,s.o.max),s.o.min));s.change(v);s._draw();to=window.setTimeout(function(){m*=2;},30);}}}).bind("keyup",function(e){if(isNaN(kval)){if(to){window.clearTimeout(to);to=null;m=1;s.val(s.$.val());}}else{(s.$.val()>s.o.max&&s.$.val(s.o.max))||(s.$.val()<s.o.min&&s.$.val(s.o.min));}});this.$c.bind("mousewheel DOMMouseScroll",mw);this.$.bind("mousewheel DOMMouseScroll",mw)};this.init=function(){if(this.v<this.o.min||this.v>this.o.max)this.v=this.o.min;this.$.val(this.v);this.w2=this.o.width/2;this.cursorExt=this.o.cursor/100;this.xy=this.w2;this.lineWidth=this.xy*this.o.thickness;this.radius=this.xy-this.lineWidth/2;this.o.angleOffset&&(this.o.angleOffset=isNaN(this.o.angleOffset)?0:this.o.angleOffset);this.o.angleArc&&(this.o.angleArc=isNaN(this.o.angleArc)?this.PI2:this.o.angleArc);this.angleOffset=this.o.angleOffset*Math.PI/180;this.angleArc=this.o.angleArc*Math.PI/180;this.startAngle=1.5*Math.PI+this.angleOffset;this.endAngle=1.5*Math.PI+this.angleOffset+this.angleArc;var s=max(String(Math.abs(this.o.max)).length,String(Math.abs(this.o.min)).length,2)+2;this.o.displayInput&&this.i.css({'width':((this.o.width/2+4)>>0)+'px','height':((this.o.width/3)>>0)+'px','position':'absolute','vertical-align':'middle','margin-top':((this.o.width/3)>>0)+'px','margin-left':'-'+((this.o.width*3/4+2)>>0)+'px','border':0,'background':'none','font':'bold '+((this.o.width/s)>>0)+'px Arial','text-align':'center','color':this.o.fgColor,'padding':'0px','-webkit-appearance':'none'})||this.i.css({'width':'0px','visibility':'hidden'});};this.change=function(v){this.cv=v;this.$.val(v);};this.angle=function(v){return(v-this.o.min)*this.angleArc/(this.o.max-this.o.min);};this.draw=function(){var c=this.g,a=this.angle(this.cv),sat=this.startAngle,eat=sat+a,sa,ea,r=1;c.lineWidth=this.lineWidth;this.o.cursor&&(sat=eat-this.cursorExt)&&(eat=eat+this.cursorExt);c.beginPath();c.strokeStyle=this.o.bgColor;c.arc(this.xy,this.xy,this.radius,this.endAngle,this.startAngle,true);c.stroke();if(this.o.displayPrevious){ea=this.startAngle+this.angle(this.v);sa=this.startAngle;this.o.cursor&&(sa=ea-this.cursorExt)&&(ea=ea+this.cursorExt);c.beginPath();c.strokeStyle=this.pColor;c.arc(this.xy,this.xy,this.radius,sa,ea,false);c.stroke();r=(this.cv==this.v);}
-c.beginPath();c.strokeStyle=r?this.o.fgColor:this.fgColor;c.arc(this.xy,this.xy,this.radius,sat,eat,false);c.stroke();};this.cancel=function(){this.val(this.v);};};$.fn.dial=$.fn.knob=function(o){return this.each(function(){var d=new k.Dial();d.o=o;d.$=$(this);d.run();}).parent();};});
\ No newline at end of file
diff --git a/templates/project/public/javascripts/jquery.masonry.min.js b/templates/project/public/javascripts/jquery.masonry.min.js
deleted file mode 100644
index 67be988..0000000
--- a/templates/project/public/javascripts/jquery.masonry.min.js
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * jQuery Masonry v2.1.05
- * A dynamic layout plugin for jQuery
- * The flip-side of CSS Floats
- * http://masonry.desandro.com
- *
- * Licensed under the MIT license.
- * Copyright 2012 David DeSandro
- */
-(function(a,b,c){"use strict";var d=b.event,e;d.special.smartresize={setup:function(){b(this).bind("resize",d.special.smartresize.handler)},teardown:function(){b(this).unbind("resize",d.special.smartresize.handler)},handler:function(a,c){var d=this,f=arguments;a.type="smartresize",e&&clearTimeout(e),e=setTimeout(function(){b.event.handle.apply(d,f)},c==="execAsap"?0:100)}},b.fn.smartresize=function(a){return a?this.bind("smartresize",a):this.trigger("smartresize",["execAsap"])},b.Mason=function(a,c){this.element=b(c),this._create(a),this._init()},b.Mason.settings={isResizable:!0,isAnimated:!1,animationOptions:{queue:!1,duration:500},gutterWidth:0,isRTL:!1,isFitWidth:!1,containerStyle:{position:"relative"}},b.Mason.prototype={_filterFindBricks:function(a){var b=this.options.itemSelector;return b?a.filter(b).add(a.find(b)):a},_getBricks:function(a){var b=this._filterFindBricks(a).css({position:"absolute"}).addClass("masonry-brick");return b},_create:function(c){this.options=b.extend(!0,{},b.Mason.settings,c),this.styleQueue=[];var d=this.element[0].style;this.originalStyle={height:d.height||""};var e=this.options.containerStyle;for(var f in e)this.originalStyle[f]=d[f]||"";this.element.css(e),this.horizontalDirection=this.options.isRTL?"right":"left",this.offset={x:parseInt(this.element.css("padding-"+this.horizontalDirection),10),y:parseInt(this.element.css("padding-top"),10)},this.isFluid=this.options.columnWidth&&typeof this.options.columnWidth=="function";var g=this;setTimeout(function(){g.element.addClass("masonry")},0),this.options.isResizable&&b(a).bind("smartresize.masonry",function(){g.resize()}),this.reloadItems()},_init:function(a){this._getColumns(),this._reLayout(a)},option:function(a,c){b.isPlainObject(a)&&(this.options=b.extend(!0,this.options,a))},layout:function(a,b){for(var c=0,d=a.length;c<d;c++)this._placeBrick(a[c]);var e={};e.height=Math.max.apply(Math,this.colYs);if(this.options.isFitWidth){var f=0;c=this.cols;while(--c){if(this.colYs[c]!==0)break;f++}e.width=(this.cols-f)*this.columnWidth-this.options.gutterWidth}this.styleQueue.push({$el:this.element,style:e});var g=this.isLaidOut?this.options.isAnimated?"animate":"css":"css",h=this.options.animationOptions,i;for(c=0,d=this.styleQueue.length;c<d;c++)i=this.styleQueue[c],i.$el[g](i.style,h);this.styleQueue=[],b&&b.call(a),this.isLaidOut=!0},_getColumns:function(){var a=this.options.isFitWidth?this.element.parent():this.element,b=a.width();this.columnWidth=this.isFluid?this.options.columnWidth(b):this.options.columnWidth||this.$bricks.outerWidth(!0)||b,this.columnWidth+=this.options.gutterWidth,this.cols=Math.floor((b+this.options.gutterWidth)/this.columnWidth),this.cols=Math.max(this.cols,1)},_placeBrick:function(a){var c=b(a),d,e,f,g,h;d=Math.ceil(c.outerWidth(!0)/this.columnWidth),d=Math.min(d,this.cols);if(d===1)f=this.colYs;else{e=this.cols+1-d,f=[];for(h=0;h<e;h++)g=this.colYs.slice(h,h+d),f[h]=Math.max.apply(Math,g)}var i=Math.min.apply(Math,f),j=0;for(var k=0,l=f.length;k<l;k++)if(f[k]===i){j=k;break}var m={top:i+this.offset.y};m[this.horizontalDirection]=this.columnWidth*j+this.offset.x,this.styleQueue.push({$el:c,style:m});var n=i+c.outerHeight(!0),o=this.cols+1-l;for(k=0;k<o;k++)this.colYs[j+k]=n},resize:function(){var a=this.cols;this._getColumns(),(this.isFluid||this.cols!==a)&&this._reLayout()},_reLayout:function(a){var b=this.cols;this.colYs=[];while(b--)this.colYs.push(0);this.layout(this.$bricks,a)},reloadItems:function(){this.$bricks=this._getBricks(this.element.children())},reload:function(a){this.reloadItems(),this._init(a)},appended:function(a,b,c){if(b){this._filterFindBricks(a).css({top:this.element.height()});var d=this;setTimeout(function(){d._appended(a,c)},1)}else this._appended(a,c)},_appended:function(a,b){var c=this._getBricks(a);this.$bricks=this.$bricks.add(c),this.layout(c,b)},remove:function(a){this.$bricks=this.$bricks.not(a),a.remove()},destroy:function(){this.$bricks.removeClass("masonry-brick").each(function(){this.style.position="",this.style.top="",this.style.left=""});var c=this.element[0].style;for(var d in this.originalStyle)c[d]=this.originalStyle[d];this.element.unbind(".masonry").removeClass("masonry").removeData("masonry"),b(a).unbind(".masonry")}},b.fn.imagesLoaded=function(a){function h(){a.call(c,d)}function i(a){var c=a.target;c.src!==f&&b.inArray(c,g)===-1&&(g.push(c),--e<=0&&(setTimeout(h),d.unbind(".imagesLoaded",i)))}var c=this,d=c.find("img").add(c.filter("img")),e=d.length,f="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==",g=[];return e||h(),d.bind("load.imagesLoaded error.imagesLoaded",i).each(function(){var a=this.src;this.src=f,this.src=a}),c};var f=function(b){a.console&&a.console.error(b)};b.fn.masonry=function(a){if(typeof a=="string"){var c=Array.prototype.slice.call(arguments,1);this.each(function(){var d=b.data(this,"masonry");if(!d){f("cannot call methods on masonry prior to initialization; attempted to call method '"+a+"'");return}if(!b.isFunction(d[a])||a.charAt(0)==="_"){f("no such method '"+a+"' for masonry instance");return}d[a].apply(d,c)})}else this.each(function(){var c=b.data(this,"masonry");c?(c.option(a||{}),c._init()):b.data(this,"masonry",new b.Mason(a,this))});return this}})(window,jQuery);
\ No newline at end of file