adds remaining_videos method to category model
remaining videos displayed in alphabetical order
git problem, attempt to add remainig branch
credits railscasts 28 for in_groups_of method
adds params.inspect to layout for development mode
adds sidekiq gem and web interface
adds a sidekiq worker and delays for the mailer
removes duplication of tokenable module in lib
adds redis to gemfile
adds unicorn
adds procfile
bundles unicorn