IMURazor bugfixes:
-Moved gyro calibration to init method
-Added scaling for gyro signal to convert to rad/ms
-Added check if copter was moved during gyro calibration
-Syntaxtical bug fixes
Added default constructor to Vector3D
Bugfix:
-Selected alternative for calculating orientation based on dcm in IMU::update()
-made calibration zeroes float for better precition
-implemented reversing on inputs
-Call IMU::update from subclass methods
-update _lastTime to correct deltaTime calculation
-Updated example to use the new libraries