updated chat window layout and related view event listeners
ignored call notification
sync with master
added new PENDING_CALL_TIMEOUT app config setting
added jsdoc
added tests for call view
added tests for call model
enhanced test comments for legibility
added tests for Call#_setTimer()
removed no more necessary stubs
added tests for ignored call notifications
test code cleaning
Don't broadcast messages to the social api when we don't need to, to avoid console warnings.
fixed offer-timout event was not attaching pending call data
moved call offer-timeout event listener to the chat app
removed pointless comment
removed silented port errors
fixed call model documentation
Merge pull request #127 from Standard8/worker_browser_port_cleanup

Don't broadcast messages to the social api when we don't need to, to avoid console warnings
sync with master