2003-10-30  Sven Neumann  <sven@gimp.org>

	* app/base/gimphistogram.[ch] (gimp_histogram_get_count): added a
	missing GimpHistogramChannel parameter. Fixes wrong values in the
	histogram tool.

	* app/base/levels.c
	* app/base/lut-funcs.c
	* app/pdb/color_cmds.c
	* tools/pdbgen/pdb/color.pdb: changed accordingly.

	* app/tools/gimphistogramtool.c: update the histogram statistics
	on channel changes.