fix bug in grunt configuration
cleanup code
some smaller code improvements
* improve message formatting
* time ago < 1 Minutes shows now fix text
remove wrong config
Merge pull request #14 from DaAndi82/master

User stay in SUM
fix merge bug
extract userlist updates in own class
Merge branch 'master' of https://github.com/DaAndi82/sum into andi

Conflicts:
	app/sum-backend.js
	app/sum-frontend.js
don't send messages to offline users
update README.md
fix typing error
version 0.0.5
- Fix for the Auto-Scrolling problem on Userlist-Refresh.