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
Merge branch 'compas_laptop' of https://github.com/BananaSlug/sdp into compas_laptop
ACK working and integrated into Compas.c
Navigation library added. Encoder and COMPAS updated with GPS.
Fixed GPS project, added Navigation, fixed COMPAS.
Merge branch 'master' into compass

Conflicts:
	src/Compas.c
Changes to GPS and Navigation modules.
Compas compiles with navgiation changes.
Merge branch 'master' into compass
Not compiling, Errors with navigation and Magnetometer functions
Xbee integrated into Compas.c