NSH term: Only time out if no arming information is available, if arming information is available abort if unconnected on arming
Encode RC type in RSSI field for GCS
Force RSSI to zero if RC is lost
UAVCAN: allow to arm single ESCs
motor_test: cleanup
UAVCAN: implemented motor testing
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
mixer: fixed stream handle leakage
commander: correct the description array
commander: enhance the failsafe verbose output
state_machine_helper: whitespace
state_machine_helper: trying to clean up some failsafe logic
navigator: don't reset the finished flag, this fixes the strange problem where it toggles between MISSION and RTL
vehicle_status: whitespace
Debug/NuttX: small changes to make it work with the current stable branch. Debug/NuttX made existing code work with python3 in gdb. Added some new features
Merge branch 'master' of https://github.com/mazahner/Firmware
added switch to send PWM to Brushless Controller in unarmed state
commander: make the failsafe message critical
state_machine_helper: fixed comments