Removed old chat-code
Merge pull request #1464 from mluto/old-chat-code

Removed some old chat-code
Removed debug code, moved hash-setting after the param-checking
Merge pull request #1466 from mluto/timeslider-remove-debugging

Removed debug code from Timeslider
Merge branch 'develop' of github.com:ether/etherpad-lite into fix-timeslider-tests
works in all 3 major browsers