pixhawk.xml: fixed altitude type in detection_stats
Merge pull request #248 from julianoes/obcadditions3

pixhawk.xml: fixed altitude type in detection_stats
yaw and yaw rate fields for position target msgs

A very popular use case for offboard control setpoints is to send a
desired position with a desired yaw (= heading) or yawrate command.
The new fields allow to do this without the need for using the
(set)_attitude_target messages.
Merge pull request #249 from mavlink/postargetyaw

yaw and yaw rate fields for position target msgs
GLOBAL_POSITION_INT: altitude is WGS84
Merge pull request #250 from mavlink/altitudecomment

GLOBAL_POSITION_INT: altitude is WGS84
Fix test suite headers
Generator fix
added test for keyword renaming ('function')
Merge branch 'rename-js-keywords' of https://github.com/AndreasAntener/mavlink into rename-js-keywords