Issue #226 Split apps
Issue #226 Update coolster lib and poller.js
Issue #226 Add pusher lib
Issue #226 Add js.erb file for updating notifications
Issue #226 Remove notification polling and all files related
Issue #226 Add CoolsterPusher class and push_notification method
Issue #226 Call push_notiifcation in send_notification method in all notification models
Issue #226 update notification views