renaming the notification window to 'alert_window'
connection/disconnection handling
possible fix to post window opening on page load
if same id is used it replaces the current alerts contents
removed debug code
cant send empty chat messages anymore
begin refactor of posts/topics + pagination + cleanup + async
Merge branch 'master' of https://github.com/designcreateplay/NodeBB
more changes to notification dropdown in header bar
Merge remote-tracking branch 'origin' into notifications

Conflicts:
	public/css/style.less
	public/src/app.js
	src/websockets.js