Update Gemfile to rails 4.0.0
Add omniauth-github to Gemfile
Update config environments
Update routes to rails4
Use paper_trails 3.0.0.beta1
Update factories to new syntax
Remove deprecated config
Update to RedCarpet 3.0.0
Make test on models pass without deprecation warnings
Add secret_token initializer
Fix FactoryGirl usage
Make cancan work with rails4
confirm: is deprecated use data:{confirm: 'text'}
Use strong attributes in comments and episode controller
Use assets pipeline
Fix episodes features test
Remove deprecated scope call
Fix comments and remaining tests
Remove test on paper_trail