Changes to nav and logger before launch.
Merge branch 'nav-logger-final'
Merge pull request #44 from BananaSlug/compas

Mavlink updated for new messages, and fixed errors within Mavlink.
Logger, navigation, and drive tested and working.
Merge branch 'master' of github.com:dagoodma/sdp
Merge branch 'land-test'
New navigation harness almost done.

Needs override to detect control goes back to the micro controller.
Test harness for individual actuators
Added magnetic north offset.
Revised Test harness for individual actuators and better delay
Merge pull request #45 from ddeo/master

Test Harness for individual actuators
Merge branch 'compass-offset'
Added rudder left and right limits.
More improvements to Navigaton module.
Improved rudder controller to use velocity as a scalar for actuator effort. Also, if the boat flips around 180 degrees off of its desired point, it will continue to turn in a direction until it reaches the desired heading.
Fixed GPS course heading, and nav. test ready.
Merge pull request #46 from ddeo/master

updated rudder control to account for velocity. You can now tune the rudder controller in terms of velocity and proportional error.
Finished preliminary Atlas state machine diagrams.
Merge branch 'launch-attempt2'
Merged Darrel drive changes with new navigation.