removed exception when calling bye on terminated session, logs error instead
Cancel sends CANCEL in status early media
ice failed is no longer accurate; race condition on receiveInviteResponse fixed
Add Joseph Frazier to AUTHORS and README
remove unused UA.registrationContext
Session.failed matches 'failed' event API
Subscription.failed matches 'failed' event API
Session.DTMF methods match 'failed' event API
Inaugural Hacks.js - Replace Firefox turn candidates in Ack SDP