* chat windows:
- input was kicked out of the window on chrome 43
- don't animate if folded by default (e.g. after a refresh)
- width and height 100% like in the frontend
- z-index to make sure that they are over bootstrap active btn,
but below notifications, and modals
* chatter:
- internal note: send button renammed to 'Log'
- send button is the first button again
- remove annoying form view widget's tooltip
* client action: focus on composer on channel change