seekToTime() added to SoundNode wrapper
seekToTime() added to SoundNode wrapper

svn path=/trunk/libavg/; revision=4607

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