Merge pull request #1 from PX4/pymavlink_update

Pymavlink update
Merge pull request #1 from syantek/pymavlink_update

update for pymavlink changes, automatic arming, and automatic switching ...
Merge pull request #2 from syantek/master

python HIL
update rc_hil for fixed wing
Merge pull request #2 from syantek/pymavlink_update

update rc_hil for fixed wing
Merge pull request #3 from syantek/master

python HIL autostart
fixed autopilot reboot
Merge branch 'master' of https://github.com/syantek/HIL into pymavlink_update
Merge pull request #3 from syantek/pymavlink_update

Pymavlink update
Merge https://github.com/syantek/HIL
Added new gains, changed waypoints to higher altitude.
Update sensors and clean runhil

Sensors updated for newest mavlink protocol. Cleaned up runhil.py
Merge branch 'pymavlink_update' of git://github.com/syantek/HIL into syantek-pymavlink_update

Conflicts:
	.gitignore
Update sensor.py for airspeed

Added dynamic pressure data based on sea level air density and NED state velocities. Temperary fix to prevent fixed wing aircrafts from uncontrollable diving to gain airspeed in auto mode. Can be improved by using jsbsim airspeed and density data.
Merge pull request #5 from devbharat/master

Update sensor.py for airspeed
Merge branch 'master' of https://github.com/PX4/HIL

Conflicts:
	data/rc_hil