Fixed offset jumps on down-during-inertia in DragRecognizer.
Fixed offset jumps on down-during-inertia in DragRecognizer.

svn path=/trunk/libavg/; revision=9102

scotty007/libavg,scotty007/libavg,th3infinity/libavg,yyd01245/libavg,yyd01245/libavg,libavg/libavg,hoodie/libavg,hoodie/libavg,hoodie/libavg,hoodie/libavg,yyd01245/libavg,scotty007/libavg,th3infinity/libavg,yyd01245/libavg,scotty007/libavg,libavg/libavg,libavg/libavg,libavg/libavg,th3infinity/libavg,th3infinity/libavg