Added devise user authentication, added omniauth gem and added some really cool notification
Configured user model, added facebook credentials, modified devise initializer for omniauth, added the abook rb file, generated the migration with addtional omniauth fields
Edited application controller, devise edit view, devise new view, removed links from header, configured omniauth routes and added our users omniauth controller
Added post user relationship, added users show and index and controller, solved nomethod error bus and added koala gem
done