am b20c2e7c: am 477c4fee: Merge "[3163098] Fix bug in angleChange funtion which caused the returned angle change to be zeroall the time. The fix is to use PrevR instead of computing the difference between R and R." into gingerbread

* commit 'b20c2e7ca03f5ef2694b20ff9a7a10a7249eb936':
  [3163098] Fix bug in angleChange funtion which caused the returned angle change to be zeroall the time. The fix is to use PrevR instead of computing the difference between R and R.