missing motor define
-fixed UserConfiguration.h and MAVLink.h

MAVLink:
- updated to latest message definitions
- fixed altitude bug
Merge pull request #432 from AQ-AirWolf/developmentMikro

Fixed UserConfiguration.h and MAVLink updates
Merge branch 'developmentMikro' of https://github.com/AeroQuad/AeroQuad into developmentMikro