* app/brush_edit.[ch]: Allow the user to change a brush's name.

	* app/gimpbrushlist.[ch] * app/gimprc.[ch]: ported Calvin
	Williamson's brush saving code from the hollywood branch.

	* app/preferences_dialog.c:  add the brush_vbr_path

	* data/brushes/round1.vbr: removed.  You should remove this file
	from your system if you have installed previous versions.