2000-04-26  Michael Natterer  <mitch@gimp.org>

	* app/color_select.c
	* app/colormaps.[ch]
	* app/context_manager.c: removed unused global variables
	[foreground|background]_pixel and [old|new]_color_pixel.

	Initialize the colormap and visual stuff with GdkRGB instead of
	GtkPreview functions (which are deprecated).

	* app/[62 files]: removed #include's (started with colormaps.h and
	couldn't stop). Also ordered them consistently and did some small
	unrelated cleanups.
	Removed variuos <stdlib.h> et.al. but checked the files carefully
	before doing so. If I was too radical and you get warnings on your
	platform, please flame me or just put them back :)