remove the ng-model attribute from mainInput textarea to stop the digest being run every time you press a key (SYWEB-4)

SYWEB-14 #resolved

SYWEB-55 #resolve

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.

Conflicts:
	webclient/room/room.html

SYWEB-13 SYWEB-14: disabled "Call" button if the browser does not support all required WebRTC features

Internet Explorer case: Launch the app only for versions 9 and higher.

SYN-47 #resolve

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

undefined is empty. Fixed bug where empty bingWords with old accounts which hadn't logged in didn't send notifications.

Prettier and stabler video with basic support for viewing mode. For now, transition into 'large' mode is disabled.