Adding chat beacon JS file
Untested Pusher support
Listen to iframe posting message that it should be closed
Support for closing frame and changing height via postMessage from stream app
Fix bug with closing chat drop down
Untested support for "unread_questions_update" Pusher event
Pusher hooked up correctly
Merge branch 'chat-beacon' of ssh://github.com/Crushpath/crushpath-js into chat-beacon

Conflicts:
	chat-beacon.js
Do not fail if chatBeaconBootstrap is undefined
Fix beacon stuff again
Merge branch 'chat-beacon' of ssh://github.com/Crushpath/crushpath-js into chat-beacon

Conflicts:
	chat-beacon.js
Merge pull request #3 from Crushpath/chat-beacon

Chat beacon