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
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
sync with master
Merge pull request #125 from n1k0/ignore-a-call

Ignore a call