2002-12-16  Michael Natterer  <mitch@gimp.org>

	* modules/Makefile.am
	* modules/cdisplay_colorblind.c: added a display filter which will
	simulate the vision of people with color-deficiency to address
	bug #101256. Didn't know any scientific name or any correct formula,
	so I just added the framework plus the approximation formula from
	the bug report. Will need some more work to become usable.