Let's pull off the bandaid!
* Reduces studdering: webrtc.RTCTrack -> webrtc.Track
* Makes it easier to find types by editor autocomplete
* Makes code read more fluently (less repetition)
Since we're breaking the API in 2.0, our only chance to
do this is now.
Relates to #408
Update GStreamer examples to use some better defaults for real time
video. This isn't perfect, but improves the default experience for users
a little bit.
Relates to #303
* allow GST examples to use g722
* Assume G722 is mono -- that's what chrome likes,
and i don't know if anyone's doing stereo g722 anyway
Relates to #283
