added doc for Player.getTimeSinceLastFrame()
added doc for Player.getTimeSinceLastFrame()

svn path=/trunk/libavg/; revision=5790

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