2002-09-29  Daniel Egger  <degger@fhm.edu>

	* help/C/bug_submission.sgml
	* help/C/command_line.sgml
	* help/C/file_formats.sgml
	* help/C/gimp.sgml
	* help/C/gimp_license.sgml
	* help/C/glossary.sgml
	* help/C/introduction.sgml
	* help/C/keyboard_shortcuts.sgml
	* help/C/main_interface.sgml
	* help/C/why_gimp.sgml
	* help/C/dialogs/channels/channels.sgml
	* help/C/image/image_chapter.sgml
	* help/C/image/edit/cut.sgml
	* help/C/layers/layers_introduction.sgml
	* help/C/toolbox/toolbox.sgml
	* help/C/toolbox/help/context_help.sgml
	* help/C/tools/airbrush.sgml
	* help/C/tools/convolve.sgml
	* help/templates/filter.sgml: Fix all processing instructions to
	end on "?>".

	* scripts/convert-tex.py: Spit out message for unknown entity
	reference.