Merge pull request #23 from BananaSlug/master

Sonar Xbee, Compass and Mavlink
Renamed compas, removed GPS2, added lcd interface.
Encoders, barometer, Magnetometer, Position module.
Merge pull request #24 from sdajani/shah57

Encoders, barometer, Magnetometer, Position module.
Added Ack, need to transfer over to Compass branch
Merge branch 'xbee' into compass

Conflicts:
	src/Mavlink.c
Moved position into Compas project. Fixed up Encoder module.
Started newletter, added accelerometer into CC.
Xbee Ack Working
Merge branch 'master' into compass

Conflicts:
	include/Xbee.h
	src/Compass.c
Merge pull request #26 from BananaSlug/compass

Compass
Solidworks and Xbee Circuits
Added ifdef to compas accelerometer.
Merge branch 'master' into solidworks
Proper placement of solidworks and schematics
Merge pull request #27 from BananaSlug/solidworks

Solidworks
Added Magnetometer.h, fixed heading calculation. Improved command center.
Merge pull request #28 from sdajani/master

Command Center
ACKs now in RUN_SM need to test this on another computer.
Began work on ACKS