Merged mpc_rc with master
Make commander less pedantic about position status
Renamed parameters which changed from RAD to DEGREES to avoid user confusion. Also made naming of the two parameters more consistent.
Merge pull request #864 from PX4/mpc_rc

mpc_local_pos + rc_timeout
Merged master into ekf_params
Proper data manager restart handling

Introduce SYS_RESTART_TYPE parameter having one of 3 values: boot
restart, inflight restart, or unknown restart, and defaulting to unknown
restart.

px4io.cpp sets this parameter according to the type of restart detected.

dataman.c retrieves this parameter and clears data entries according to
their persistence level. Does nothing if unknown restart.
Reset init flags as well
Merge branch 'ekf_params' of github.com:PX4/Firmware into ekf_params
Debug: fixes for Nuttx.py debug gdb add-ons

also fixed preceding mask calculation in show heaps
Debug: fixes for gdb extension macros
tone_alarm: add PARACHUTE_RELEASE_TUNE
px4io: support PX4IO_P_SETUP_FORCE_SAFETY_OFF

this allows the FMU to force the safety off on the IO board. Useful in
two cases:

 1) vehicles where the safety switch is impractical or not useful
 (eg. HAB planes or internal combustion motors)

 2) doing ESC calibration on multi-copters
pwm: added PWM_SERVO_SET_FORCE_SAFETY_OFF ioctl

this allows the safety switch on px4io to be forced off
add options do disable or fake gps output in rcS
remove whitespace
Added automatic declination lookup
Merge branch 'autodeclination' into ekf_params
mc_pos_control: hotfix, MPC_TILTMAX_AIR and MPC_TILTMAX_LND parameters fixed
Added support for automatic mag declination setup
Merge branch 'master' of github.com:PX4/Firmware into ekf_params