Made webtest tests work, wrote first AppRTC server test.
Allow picking TURN/UDP or TURN/TCP in url params

Also, clean up some legacy TURN-related URL parameters that were
obsolete.  You can now specify a HTTP URL for TURN via ts=, but the
previous ts, tp, ss parameters are now defunct.
Made webtest tests work, wrote first AppRTC server test.
Merge branch 'apprtc_server_test' of https://github.com/phoglund/webrtc into apprtc_server_test
Updating test.
Fixed bug.
Resolve PR comments
Expanded comments regarding it/tt.
Added unit tests
Fixed error message.
added 1080 + min constraints
Merge pull request #320 from GoogleChrome/ensureRequestedResolution

Added min constraints to ensure the requested resolution is honored and added 1080
Add device labels to traceGumEvents
Fix capitalization on traceGumEvent.
Merge pull request #321 from GoogleChrome/addDeviceLabelToInitialGum

Add device labels to traceGumEvents
Merge pull request #313 from phoglund/apprtc_server_test

Adding AppRTC python server tests using the webtest library.
Merge pull request #312 from GoogleChrome/tt

Allow picking TURN/UDP or TURN/TCP in url params
Tweaks following comments from juberti