ui: up,down and move handler can return True to abort event bubbling
ui: up,down and move handler can return True to abort event bubbling

svn path=/trunk/libavg/; revision=5389

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