Merge pull request #20 from EmbeddedFiedel/master_ypr_implementierung

Merge to master: added a ypr-function from the mpu 6050 libary.
Config for LED usage
Merge remote-tracking branch 'origin/master_LED' into Quad_Mini_Repair_Jo

Conflicts:
	Project/ARMCM4-STM32F407-DISCOVERY/main.c