mkblctrl fmuv2 support added
code cleanup
i2c1 bug and bus scan fixed
startup rewrite
Fixed up nullptr handling
Fixed code style
Merge pull request #638 from PX4/mk_interface

Mk interface
Updated uploader from Bootloader repo
Updated uploader from Bootloader repo
Merge branch 'master' of github.com:PX4/Firmware
Merge branch 'master' into paul_estimator