Added DragRecognizer.directionTolerance.
Added DragRecognizer.directionTolerance.

svn path=/trunk/libavg/; revision=6613

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