Moved mixer file load / compression into mixer library.
Added mixer test
Added host-building mixer test
Fixed mixer chunk load and line ending detection for good.
Improved mixer tests
Merge branch 'master' of github.com:PX4/Firmware into mixer_testing
Merge branch 'mixer_test_merge' of github.com:PX4/Firmware
Merge branch 'master' of https://github.com/PX4/Firmware into geofence
Merge pull request #463 from jean-m-cyr/geofence

Merge master into geofence