The 0.8.2 release didn't include new builds due to an unnoticed build error.

Hebrew translation update

and one for logging out. Also added a favicon.

Elements in chat rooms are now hidden, instead of removed. Update tests to
reflect this.

Fixed problem with Strophe handlers zombies.
Remove zombie handlers for minimized chats (caused duplicate minimized chats).

* Make sure to rebroadcast presence when logging in after having just
logged out.
* Remove roster contacts when logging out, to avoid artifacts when logging in
with a different account.

Avoids username and pw inadvertently being added to the URL if the submit event
handler for some reason fails (which shouldn't happen of course).

Also, scrollDown after toggling occupants sidebar.

The tpl configuration in main.js is only for externally loaded templates, if we
use inline templates (as is the case with the room invite feature), we need to
configure _.templateSettings as well.

Otherwise we will reuse old/stale objects for which we receive no add events
(resulting in an empty roster).