- First pass at basic video streaming

- Use kxmovie git submodule
- Update README with new build steps
- Toggle video stream from map view
- Scale video down based on scale factor.
- Hard code test  stream but have ability
  to view video directly from UDP blast from
  UAS.
Add min/max buffered duration to test stream defs
Update kxmovie submodule

- point to a version of kxmovie with bottom
  hud disabled since it looks bad and is not
  needed for demo video.
Merge pull request #3 from andymoe/streaming-video-first-pass

Streaming video first pass