Fixed friendly_token - change only if new password for omniauth
Added Notification Model
Fixed factory girl (added created user confirmation)
added 'answer accepted' & 'new answer'  notifications
User can delete one or all notifications
Added pusher & gritter gems
Added Pusher controller, added Pusher notification when new answer or accepted answer
Notifications are mark as read when link opened, all notifications can be marked as read
deleted some unnecessary code from Pusher files
New question & Edit question in AJAX
New answers in AJAX
Accept answer in AJAX
Added 'About me' page
Cleaned stylesheets
Added 'check selected as read' in Notifications, moved '#before actions' in the end of controllers
Added 'check selected as read' and 'check all as read' with AJAX
Added 'fog' gem to upload Avatars to Amazon S3
Avatars are send to 'Amazon S3' cloud