3DR_Aero_RTF: Changed the name from 3DR_Skywalker_RTF
AP_BoardConfig: restore /dev/vroutput change from Emile

my mistake, sorry Emile!
Plane: fixed typo in VRBrain port
build: added vrbrain to build_all.sh script

useful for ensuring it will keep building
Copter: dos2unix Parameters.h
Copter: enable GCS failsafe to RTL by default

This only triggers if the user has been using the GCS's RC override
SITL: prevent wind effects at negative altitudes

this prevents crashes on takeoff with barometer noise
AntennaTracker: fixed manual control, and added baro calibration

this allows baro offsets to be compensated for before takeoff
AntennaTracker: added SERIAL_CONTROL support

allows for radio update and config over USB
AntennaTracker: don't use EEPROM home if a startup home is set in parameters
AntennaTracker: added SCAN mode

this is used to test calibrate the compass, and to test tracking PIDs
AP_HAL_PX4: failsafe code cleanup
Merge branch 'explicit_failsafe2' into flight_test4

Conflicts:
	libraries/AP_HAL_PX4/RCInput.cpp
AP_HAL_PX4: failsafe code cleanup, init fix
Merge branch 'explicit_failsafe2' into failsafe_tones2

Conflicts:
	libraries/AP_HAL_PX4/RCInput.cpp
Merge branch 'master' of https://github.com/diydrones/ardupilot into flight_test4
Merge branch 'failsafe_tones2' into flight_test4