Fix bug where adding friends from URLs wouldn’t actually do it.
Hide headers when they have no items
Minor fixes.
Add request button sources
Expand me ->
mio:
- Added conversion function from Tox native format to Cherry-files

Poison:
- Minus button in SCBuddyListController does something now
- Lay framework for javascript API
- Preserve selected row when the friend list changes
- Disabled list animations (turns out they were completely broken)
- Moved friend deleting confirmation to the SCAppDelegate
- Added German localization (partial), thanks toxification
- Tinker around with alignment of video box in SCChatViewController