Don't leave RX in bind mode on console open fail

Don't leave RX in bind mode in the unlikely eventuality that console
open fails
Merge pull request #331 from jean-m-cyr/master

Don't leave RX in bind mode if console open fails
Hotfix: fixed compile warnings
Merge branch 'master' of github.com:PX4/Firmware
Merge branch 'master' into vector_control