First working draft of private channels
Improve private channels

Follow up messages will be shown in opened private channels
Rename variable and fix closing of private channels
Convert messages to whisper when in private channel
Merge branch 'master' into privateChannels

Conflicts:
	file/js/be.bastelstu.Chat.litcoffee
Allow the user to open a privat channel
Add graphical interface for private channels.
Add forgotten files

Maybe I was asleep ... I don't know.
Readd accidentally deleted template code

This shouldn't be deleted in this branch.
Simplify code a bit
Fix tooltip positioning
Closing of private channels is now possible,

add notifications to private channel tab menu (style is just a placeholder
right now)
Merge branch 'privateChannels'
Merge remote-tracking branch 'origin/privateChannels'