upgraded jssip to 0.4-devel, skipped the webrtc switch mic notifications

Upgraded jssip from 0.3.7-devel to 0.4.0-devel
When the webrtc echo test answer is "no" swap to Flash audio immediately
Correctly dispatch an event when the call to the meeting voicebridge fails
Cleaned up the FlashMicSettings window a little to make the view the same at all times