Fixed issue with not recognising unsupported resolution error

Simplify source-remove notifications.

Fix xmlns attributes of presence mute extensions

When source-add and source-remove for the same SSRC arrive just one after
another, SSRC will not be removed as it didn't make it to the remote description
yet.

Before the change we were constructing lines to be removed based on SSRC
parameters values supplied in the notification. We want the client to simply
remove all lines related to the SSRC being removed as sometimes things get
out of sync. For example when Chrome adds 'default' mslabel or when we'll be
doing lipsync stream merging.

Fixes the performance time structure which is used by torture

Adds screenShareStart and screenShareStop events to callstats reports.

Updates onDisplayNameChanged

Disables rtx.

Fixes ordering of a=ssrc lines before SRD is called.

Allows RTX to be disable for a conference.

Uses sdp-simulcast 0.1.6 (fixes for RTX + simulcast).

Global error handler and reporting those errors.

Ice restart

Enable adaptive simulcast by default

# Conflicts:
#	modules/xmpp/JingleSessionPC.js

Stores measured times and exposes them

Recompile browserify bundle on file changes (watch mode)

Adds time logs for external_connect.js

Catch all errors coming from command handlers to avoid detaching pre…

Adds timeout for the AJAX prebind request

Reduce MUC joined time

Limits the early DTLS fix to Chrome...