Refactored starting cord pull detection.
whitespace fix.
removed reset command.

As it was not functionning and not used, it was dead code.
renamed pio write.
Refactorded arm_append_point.

I forgot that realloc(NULL, size) is equivalent to malloc(size).
whitespace fix.
Refactored arm_init.
refactoring.
More code cleanup.
removed obstacle collision code.

It was not used and not completed.
refactored frame interpolation into own function.
Refactored shoulder position selection code.
removed arm_linear_motion stuff.
removed cvra_param_robot
Removed adresses.h