moar constants
Kalman OS integration (sans tests)

Only compiles when you remove the -Werror flag in the Makefile because
of unused variables and functions in kalman.c
printf while a mutex is taken kills realtimeness
moar concurreny problems

signaling that data is ready to use while the ressource is still locked
by a mutex is pretty stupid.
forgot to remove variables used for debug
Merge remote-tracking branch 'cvra/master'
interface to visualizer and testing
quick fix so it compiles with -Werror
Merge pull request #23 from froj/master

Integrated Kalman into uCOS