Fixed conversion of accelerometer registers to fixedpoint.
Fixed accelerometer orientation macro.
Inversed yaw PID output for Hubsan because motors rotate in opposite direction compared to other models.
Changed conversion of gyro registers to fixedpoint.
Disable unused interrupt output in accelerometer initialization.

Changes to be committed:
	modified:   src/accelerometer.c
	modified:   src/defs.h
	modified:   src/gyro.c
Merge pull request #2 from TheLastMutt/pullreq1

Changes to make Hubsan H107L fly