new compass
Merge branch 'milestone1' of code.csdn.net:QawsQAER/esdc2014 into milestone1
nothing
restore the usage of compass, in robot_ready()
move the get degree with user's confirmation in robot_init()
1. fix potential bug in camera.cpp, where (mode=CANON) -> (mode == CANON)
2. move the duplicately defined macro in macro.h and camshiftdemo.cpp
3. reactive the compass usage
Merge branch 'milestone1' of code.csdn.net:QawsQAER/esdc2014 into milestone1