updated the calender to support more features

Departments
Fix JSON encoding
Associate colors to departments
Setup Asset Pipeline 
Upgraded Rails 
Setup bootstrap
added more updated gems
gem 'haml-rails'
gem 'twitter-bootstrap-rails'
gem 'decent_exposure'
gem 'simple_form'
gem 'rails-backbone'
gem 'json'
gem 'jquery-rails'
gem 'jquery-ui-rails'
gem 'jquery-rest-rails'
gem 'fullcalendar-rails'
gem 'jquery-minicolors-rails'
gem 'awesome_print'