catapult launch detection: fix integration logic
Improve startup and payload handling
Support additional payload commands and let commander ignore them
Merge pull request #1321 from PX4/startup_payload

Improve startup and payload handling
Merge pull request #1322 from PX4/payload_commands

Support additional payload commands and let commander ignore them
Merge pull request #1302 from PX4/catapultlaunchdetectorhotfix

catapult launch detection: fix integration logic
mavlink: code style only fix
Merge branch 'master' of github.com:PX4/Firmware into indoor
Start the laser on a port not offending the 2nd MAVLink instance
Start flow driver, start MAVLink instance with right arguments