2003-12-08  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpdatafactory.c: code review / cleanup.

	* app/plug-in/plug-in.c
	* app/plug-in/plug-in-message.c: unified messages about plug-in
	errors. Changed lots of g_warning()s to g_message()s because
	g_warning() is for programming errors and the user should be
	informed that the plug-in was killed and did not simply crash.