Add rake tasks to validate and lint files and check with Travis

This patch adds the ability to validate syntax of manifests, templates,
and ruby files in lib/ via `rake validate` and the linting of manifests
with puppet-lint via `rake lint`. These two commands are chained with
running the spec tests in Travis to ensure there are no syntax or style
issues.

1 files changed, 2 insertions, 0 deletions

diff --git a/Gemfile b/Gemfile
index 636f930..1b788fd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -39,4 +39,6 @@ else
   gem 'puppet', :require => false
 end
 
+gem 'puppet-lint', '>= 0.3.2'
+
 # vim:ft=ruby