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
Fix chat window failures now that _createOffer and _createAnswer need to have the call type set before being called.
Fix jshint issues
Fix review comments to make data structures clearer in the tests
Merge pull request #92 from Standard8/sdp_hookups

Complete the hook up of offer creation and sending when opening the chat window
Record the port when starting a new call
Handling incoming_call from the server by opening a chat window on the client.
Make chat-window-ready send a call-incoming event if we're handling an incoming rather than an outgoing call
Fix jshint issues