webrt: set the localStream
webrtc: set the remoteStream
CallView: first draft
CallView: implement the _displayLocalVideo handler
WebRTCCall: refactor _getMedia to be more readable
Make _getMedia attach the localStream to its PeerConnection; mostly paired with @tOkeshu
Fix issues surfaced by jshint
Merge branch 'chatapp-webrtc'.  This adds _getMedia support to WebRTCModel, cleans up some tests, and checkpoints the chat CallView.  r=@Standard8
Hoist mozGetUserMedia stubbing into a beforeEach to fix a bug
Change CallView tests to run in strict mode
Hoist webrtc creation from individual tests to beforeEach/afterEach
Implement displayRemoteVideo
Merge pull request #90 from dmose/chat-call-view

Implement displayRemoteVideo
Add worker handlers for talkilla.call-offer and talkilla.call-answer
Add front-end handling for offers from the webrtc model to the worker
Add front-end handling for answers from the webrtc model to the worker
Fix jshint errors
Merge pull request #91 from Standard8/chat-webrtc-worker

Hook up sending of offers and answers from the webrtc model to the worker and through to the server.  Large parts written by @Standard8, r=@dmose; the rest was paired by both of us.
Fix the port listeners for the chat app to have the correct parameters, and set the video and audio attributes on the webrtc model before starting the call.
Add initialisation of the chatApp to the chat window