2008-01-03  Michael Natterer  <mitch@gimp.org>

	* app/gegl/Makefile.am
	* app/gegl/gegl-types.h
	* app/gegl/gimpoperationthreshold.[ch]: gimpish threshold operator
	which has "low" and "high" properties.

	* app/gegl/gimp-gegl.c: register it.

	* app/gegl/gimpoperationdesaturate.[ch]: fix copyright.

	* app/tools/gimpthresholdtool.[ch]: use the new operator.


svn path=/trunk/; revision=24515