Reboot if IO update startup fails on first try
ESC calib: low PWM value was not set
Merge pull request #573 from julianoes/hotfix_esc_calib

ESC calib: low PWM value was not set
navigator: takeoff and mission fixes
Merge master into navigator_new
Merge branch 'navigator_new' into navigator_new_vector
mc_pos_control: takeoff hack removed