Video calling (in a tiny box at the moment)
WIP video chat layout
Prettier and stabler video with basic support for viewing mode. For now, transition into 'large' mode is disabled.
add unprefixed filter css as well
Fixed SYWEB-16: When sending an invite over federation, the remote user sees the name of the resulting invite room as *their* name rather than the inviters
Room id leaks: log them when then happens. Plus log the conditions that made them happen
A kind of the typo in the fix of SYWEB-44
formatting
Small formatting fixes
SYN-47: Fix bug where we still returned events for rooms we had left.

SYN-47 #resolve
First working version of UI chrome for video calls.
SYWEB-13: Do not start the app if the browser does not support WEBStorage.
Internet Explorer case: Launch the app only for versions 9 and higher.
SYWEB-13: disabled "Send image" button if the browser does not support HTML5 file API
SYWEB-13 SYWEB-14: disabled "Call" button if the browser does not support all required WebRTC features
Merge branch 'videocalls' into develop

Conflicts:
	webclient/room/room.html
Test that prev_content get's added if there is a prev_state key (in the event stream).
Fix the "is webrtc supported" titles on buttons and make the video / voice call buttons appear in multi-user rooms but be greyed out with approriate titles.
SYWEB-32: made all input/textearea inherit the font of their parent
Join rooms if we're not already in them when accepting a call coming from that room.
SYWEB-55 #resolve
Move video background element up as it was causing the page to scroll.