* tools/pdbgen/pdb/brush.pdb: added api for changing properties
	of generated brushes.

	* tools/pdbgen/pdb/palette.pdb: added palette_is_editable().

	* app/pdb/brush_cmds.c
	* app/pdb/internal_procs.c
	* app/pdb/palette_cmds.c
	* libgimp/gimpbrush_pdb.c
	* libgimp/gimpbrush_pdb.h
	* libgimp/gimppalette_pdb.c
	* libgimp/gimppalette_pdb.h: autogenerated.