began porting tabbar to Ariya's koffice lib tabbar (the tabbar is broken
now, but it was already broken, too), started work on adding some more
painting properties like spacing to resources, started work on re-adding
tool dialogs, extended new layer dialog to include more useful options,
added composition op choice to layers -- like Gimp's layer effects, took
composition ops out of the main colour strategy file and started porting
a few more of GraphicsMagick's composite ops to Krita and removed some
obsolete files. Oh, and made sure that one image can consist of layers
of more than one image type.

svn path=/trunk/koffice/; revision=283681