Add Automatic refresh of bitmaps and screen space mapping inside of the bitmap

[mitviz]

these are also some really needed features, just doing a commercial project and its a pain without screen mapping

[Karba]

I will add screen mapping and check what I can do regarding automatic refresh.

[mitviz]

I will add screen mapping and check what I can do regarding automatic refresh.

perfect! much needed features, especially for photomontage product shots