fixes bug #156788 - orientation detection is too sensitive.
fixes bug #156788 - orientation detection is too sensitive.

git-svn-id: 2100487fe14ce9054e51d643d02368898b920a24@17728 db81c003-b5ea-0310-aa99-ed7f6e1db739

mbbill/sensorfw,lpotter/sensorfw,lpotter/sensorfw,mbbill/sensorfw,lpotter/sensorfw,lpotter/sensorfw,mbbill/sensorfw,mbbill/sensorfw