Patch: Smudge Brush fixes

[Silvio Heinrich]

Now it should work pretty similar to the smudge tool in gimp.
But I still need to do some tweaks to how the rate values (color and 
smudge rates) are used.
It only smudges/paints correctly in a certain region of the rates.
But the transparency issues should be solved by now, so no black color 
should be introduced anymore (hopefully :P).
-------------- next part --------------
A non-text attachment was scrubbed...
Name: SmudgeBrush.patch
Type: text/x-diff
Size: 0 bytes
Desc: not available
Url : http://mail.kde.org/pipermail/kimageshop/attachments/20110104/efb2645a/attachment-0001.bin