Change signaling to use the "start" caress pattern
Fix xhrPostJson call in drainIceQueue
Update caress version
Update caress again -_-
Modernize drainIceQueue post callback
Unwrap answerOffer, use signalPath for posting
Use `signalPath`, never `location`

Seeing as how `window.location` is defined by default, that was a bad choice of name.
Increment pollPoint after getting remote description
Stop ICE candidates from being sent before local description

This is necessary since signalPath can now be set before the local
description's POST succeeds.
v0.2.0