0.8.0 pre-release

Make the camera read a little more reliable
Fix a projector calibration bug
Rework the projector flow so that you can get back to calibration grid, and confirm calibration so it doesn't just magically go away.

Please download the 0.7.0 windows binaries alongside this jar here: https://github.com/CmdrDats/igoki/releases/download/0.7/igoki-windows.zip if you want the windows wrapper as well.

Full Changelog: 0.7.1...0.8.0