Merge pull request #252 from noahsug/master

adds minus buttons next to rooms which can be clicked to leave the channel or server
Merge pull request #253 from noahsug/master

minor css tweaks on 'add channel' and 'add server'
Merge pull request #254 from noahsug/master

Inline username with message
Merge pull request #255 from noahsug/master

Minor CSS tweaks
Merge pull request #256 from noahsug/master

small notice refactor