WebRTCCall: document the public methods and add a example usage
Improve the WebRTCCall documentation
WebRTCCall: more precise types for the doc
WebRTCCall: normalize the comment style
Merge branch 'master' into webrtccall-doc

Conflicts:
	static/js/models.js
Merge pull request #104 from tOkeshu/webrtccall-doc

WebRTCCall: document the public methods and add a example usage
introduced signInUser test helper
added signOutUser functional test helper
Merge pull request #110 from n1k0/functional-test-helpers

Functional test helpers