2007-01-28  Michael Natterer  <mitch@gimp.org>

	* app/core/Makefile.am
	* app/core/core-types.h
	* app/core/gimplayerpropundo.[ch]: new undo class which handles
	LAYER_REPOSITION, LAYER_MODE, LAYER_OPACITY and LAYER_LOCK_ALPHA.

	* app/core/gimpimage-undo-push.c: use the new undo class and
	remove the resp. code here.


svn path=/trunk/; revision=21791