- some sensor factorization ITG3200 / ITG3205 / ITG3050 / MPU3050 / MPU6050
- bug correction GYRO_SCALE for ITG3050 (thanks to https://www.youtube.com/watch?v=J4jMeUsQGIs)

git-svn-id: http://multiwii.googlecode.com/svn/trunk/MultiWii_shared@1718 02679b44-d973-9852-f2fa-63770883b36c