Remove getUserDisplayName and move that logic the filter mUserDisplayName. Update references. Skip tests for now as there are some unresolved DI issues for filters.

Previously, there was some of it in a lovely generic directive, but the
core of it was hard coded id attributes in RoomController. It's now all
generic in a directive: the room history you get when you up/down arrow
is determined by the value of the attribute e.g. command-history="!foo:bar"
would present the history for !foo:bar. In practice, this is {{room_id}}
in the html.

Migrate random bits of desktop notification logic out of roomController and into eventHandlerService where everything else is.

Conflicts:
	syweb/webclient/app-controller.js
	syweb/webclient/index.html

remove nganimate dependency as it seems to feature disproportionately highly in the FF profiler, and removing it seems to have stopped my FF stalling for seconds on end

Kill ng-animate with fire because it's terrible (was causing the page to be very sluggish). Do the call icons in pure CSS3 and use one less image to boot (in some browsers the phone icon will be the wrong browser but they can deal).

This gives just enough space for the vertical scrollbar to be shown without adding a horizontal scrollbar.

Detect OpenWebRTC and add workarounds, but comment out the turn server removal for now so we have a live demo of it not working.

Priority is the same as xchat so selected > blue > red.

Remove the selectedRoomId from rootScope and instead store it in
recents-service. Add a broadcast to notify listeners (recents-controller)
to updates of this.

This highlights rooms when something has happened and you haven't viewed
it yet. It highlights entries in a slightly red background colour.

Remove getRoomAliasAndDisplayName: room name logic is in mRoomName filter, and this method was only used for /publicRooms requests.