* Transcoder updates for validator warnings (gop, max-bitrates) for #50
* Make the variant settings easier to set/read in code
* Update test to reflect update to transcoder
* Reduce the buffer to give it a little more room to improve the quality. It feels a bit crunched right now.
* Fix test due to changed bitrate buffer ratios
* Tweak buffer size one more time to get errors in the validator to zero
* Saw errors w/ different bitrates, so tweaking it again
