Created new Barometer Message

Fixed "North" & "East" to "north" & "east"
Started the barometer message, hit a strange error.
Changed color and took a picture of the render
Xbee Schematics, created Gerber Files. I do not believe they work.
Barometer message finished and compiling. Need Shah to help me integrate it into the State Machine.
Working on atlas drive system.
Merge branch 'master' into schematics
Merge branch 'compas_laptop'
Merge branch 'schematics'
Barometer added to compas code.
Merge pull request #41 from BananaSlug/master

All my changes
Merge pull request #40 from ddeo/master

UpdateHeading function accounts for float headings. Magnetometer Accumulator changed from 50 to 1 so that avgerages between 0 and 360 degrees doesn't amount to 180 degrees.
Merged Darrel and John changes.
Changes to GPS, Navigation, and Atlas, as well as mavlink messages (needs generating)
Atlas and compas changes including GPS integration.
Finished GPS changes to ECEF and library.

Many changes to GPS, initial Navigation system finished. Added
functionallity to the AtLAs state machine, but it is still unfinished.
Navigation system operational in test harness.
Merge branch 'master' of git://github.com/dagoodma/sdp
Implemented controller for velocity and rudder