2002-05-16  Michael Natterer  <mitch@gimp.org>

	* libgimpbase/gimpprotocol.[ch]
	* libgimpbase/gimpwire.[ch]: pass "gpointer user_data" to all
	functions, which in gets turn passed to the registered reader,
	writer, and flusher funcs.

	* libgimp/gimp.c
	* libgimp/gimptile.c: pass NULL as user_data. We have only one
	pipe on the plug-in side.

	* app/plug-in/plug-in.c: pass the PlugIn as user_data. As a
	consequence, got rid of more global variables. The global
	"current_plug_in" and the plug_in_push()/pop() madness are still
	there. Will reeplace them by some less ugly hack later...

2002-05-16  Michael Natterer  <mitch@gimp.org>

	* libgimpbase/tmpl/gimpprotocol.sgml
	* libgimpbase/tmpl/gimpwire.sgml: regenerated after API change.