Add signup with facebook
Refactorings
Add extending long lived token, save token to facebook_user tbl.
Add sign in with Twitter
Add omniauth specs
Modify initializers
Modify specs
Refactoring of omniauth_callbacks
Modify to use class instance variables
Add unique constraints
make use of find_or_create_by, and try
Make use of link_to
Make use of rack_smartphone_detector
Refactorings
Add index to users
Merge pull request #26 from 14ALL/okawa/omnioauth

Add Sign in with facebook/Twitter