Added config dump button to avg_chromakey.py.
Added config dump button to avg_chromakey.py.

svn path=/trunk/libavg/; revision=5194

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