2008-09-01  Sven Neumann  <sven@gimp.org>

	* app/paint-funcs/paint-funcs.[ch]: added clear_region().

	* app/base/tile-manager-crop.c
	* app/core/gimpchannel.c
	* app/core/gimpimage-merge.c
	* app/core/gimpmaskundo.c
	* app/core/gimpprojection-construct.c: use it instead of calling
	color_region() with a zero color.



svn path=/trunk/; revision=26826