Fix retrieving camera & mic names when not using both audio & video.
1.3.1
Fix working with video or audio only streams.
1.3.2
Add hasVideo flag and calculateAlternates()
1.4.0
Improve fitting algorithm

Will choose on oversized video if it will need to be downscaled
less than the the smaller video will need to be upscaled.

Trades (not reducing) bandwidth for higher quality around those edge cases.
1.4.1
Fix Firefox support
1.4.2