2003-07-01  Sven Neumann  <sven@gimp.org>

	* libgimp/gimp.[ch]
	* libgimp/gimpchannel.[ch]
	* libgimp/gimpdrawable.[ch]
	* libgimp/gimpimage.[ch]
	* libgimp/gimplayer.[ch]
	* libgimp/gimpmisc.[ch]
	* libgimp/gimpmiscui.[ch]
	* libgimp/gimppixelrgn.[ch]
	* libgimp/gimpproceduraldb.[ch]: added const qualifiers to the
	libgimp API. Will cause lots of compiler warnings until the
	generated PDB code has been constified as well.

	* libgimpbase/gimpparasite.[ch]: use gconstpointer, not const
	gpointer.