Encode RC type in RSSI field for GCS
Force RSSI to zero if RC is lost
Initialize RSSI so it doesn't remain uninitialized

Spektrum doesn’t support rssi so it is not set by st24_decode.
Merge pull request #1431 from DonLakeFlyer/rctype

Initialize RSSI so it doesn't remain uninitialized
First stab at animation
Let it breathe
Merge branch 'lights'
Let it breathe stronger
Breathe animation, led solid on arming
navigator: only update sensor_combined topic with 50Hz
Merge pull request #1458 from PX4/fix_navigatorload

Fix navigator load
Adjust navigator priority
Merge pull request #1459 from PX4/navprio

Adjust navigator priority
px4io: added RC_CONFIG, SET_OVERRIDE_OK and CLEAR_OVERRIDE_OK ioctls

this allows for full setup of RC override without needing param_get()
to PX4 specific parameters
px4io: publish pwm values when STATUS_FLAGS_FMU_OK is not set

this allows testing of FMU failure behaviour in px4io by monitoring
the reported PWM output when the vehicle code stops sending
updates. Otherwise testing needs to be done with "px4io status" which
is very tedious.

With this change a GCS can monitor the PWM outputs from the failsafe
mixer using normal mavlink messages
px4io: added OVERRIDE_IMMEDIATE arming flag

this allows the flight code to choose whether FMU failure gives
immediate manual pilot control, or waits for the mode switch to go
past the override threshold
px4io: added RC_CONFIG, SET_OVERRIDE_OK and CLEAR_OVERRIDE_OK ioctls

this allows for full setup of RC override without needing param_get()
to PX4 specific parameters

Conflicts:
	src/drivers/drv_pwm_output.h
Correct setting of DSM and ST24 flags
Fix PWM command
Merge pull request #1460 from DonLakeFlyer/rctype

Correct setting of DSM and ST24 flags