Changes since 0.5.0-rc:
* locale prefix support
* download client from user page
* hotfix to make webapp work with rack again
* ensure permissions are preserved when copying customization files. (#4623)
* Return 'provider.json' via a controller, to better be able to control the response headers
* document new way we deploy couch design docs
* remove outdated views that cause errors
* only emit pgp keys if they are actually set
* ensure auto_update_design_docs is false
* switch to using dl.bitmask.net
* remove manual 'gem minitest'
* default pricing, privacy policy and tos pages
* default footer with links to privacy policy, tos, pricing, about us, contact
* upgraded bootstrap to latest in 2.x series
* move #masthead out of main templates
* customizable 'bye' page for when a user leaves
* fix js platform detection
* applied mcnair's changes to privacy policy
* untracked files in deploy are in gitignore - #4953
* gitkeep empty folders for config/provider and config/customizations
* integration test with en-EN language
* ensure record removal after tests
* log failing integration tests with screenshot and serverlog
* stop taking screenshots inside tests

Release candidate for the first syncronised leap release 0.5.0.

* do not allow to clear pgp key
* simple format validation for pgp keys
* respond to /keys/:login with text
* service levels introduced to the configuration
* more robust session store
* render landing page and basic forms without connection to couch
* configurable set of actions for users and admins
* refactoring: remove overview controller - use Users#show instead
* prevent /login from crashing when logged in already
* remove actions from ui that currently break the client
* format ticket comments properly
* enable billing engine by default
* consolidate APP_CONFIG[:billing]
* fix a regression where overview link was not active anymore

* Return public key on /key/:login
* rake tasks clean up expired tokens and sessions (#4568)
* rake task to dump design docs to files
* add dump_design_docs to CouchRest::Model::Utils:Migrate
* rename ticket title to subject

* Return public key on /key/:login
* rake tasks clean up expired tokens and sessions (#4568)
* rake task to dump design docs to files
* add dump_design_docs to CouchRest::Model::Utils:Migrate
* rename ticket title to subject

* ensure that we only copy files for customization when restarting the app (#1300)
  not every time a rake task is run (especially since some rake tasks get run
  as root!)
* improvements to the download button
  (proper localization, better image, better hooks for customization)
* added support for easier customizations via "config/customization" directory (#1300)
* log json request errors and their backtraces
* show Ticket with the appropriate error messages. (*4453)
* update readme to require ruby 1.9.3 instead of 1.8
* Token.destroy_all_expired to cleanup expired tokens (#4411)
* use the account lifecycle from UsersController#destroy (#4216)
* destroy all tickets created by a user when account is destroyed (#4216)
* integration test for blocking handles after account destroyed (#4216)
* disable identities to block handles after a user was deleted (#4216)
* notify user their account was successfully deleted (#4216)
* Fix button to enable account (#4246)

* reset button state from 'loading...' after failed login attempt
  (#4231)
* use https sources in Gemfiles and documentation(#4109)
* include Gemfile.lock to prevent unintended updates (#4174)
* fixed download urls to get latest versions for mac, android and
  windows
* test api login with umlauts in password

* detect os in browser and show proper download link (#4173)
* billing: admin can see past due subscriptions
* passwords with umlauts work when logging in after signing up with the
* client (#4002)
* blacklisting common system email addresses listed in RFC 2142 (#3602)
* blacklisting all usernames on the server (#3602)
* configurable blocking of logins in the configuration (#3602)
* require aliases to be all lower-case
* Only allow braintree one-off payments when unauthenticated, & call them 'donations'.
  (#3796)