2003-09-22 Henrik Brix Andersen <brix@gimp.org>

Replaced the netscape-dependent web browser plug-in with a user
configureable plug-in. This fixes bug #119120:

* app/config/gimpguiconfig.[ch]: added gchar *web_browser member

* app/config/gimprc-blurbs.h: added web browser blurb

* etc/gimprc
* docs/gimprc-1.3.5.in: regenerated using gimpconfig-dump

* app/gui/preferences-dialog.c (prefs_dialog_new): added UI for
specifying external web browser

* configure.in
* plug-ins/Makefile.am
* plug-ins/webbrowser/Makefile.am
* plug-ins/webbrowser/README
* plug-ins/webbrowser/web-browser.scm
* plug-ins/webbrowser/webbrowser.c : removed the old netscape-dependent
web browser plug-in

* po-plug-ins/POTFILES.in
* plug-ins/common/plugin-defs.pl
* plug-ins/common/webbrowser.c: added a new web browser plug-in

* plug-ins/common/.cvsignore
* plug-ins/common/Makefile.am: regenerated

* app/widgets/gimphelp.c
* app/widgets/widget-enums.[ch]
* plug-ins/helpbrowser/dialog.c
* plug-ins/maze/maze_face.c: changed accordingly + whitespace
clean-up

* po-script-fu/POTFILES.in
* plug-ins/script-fu/scripts/Makefile.am
* plug-ins/script-fu/scripts/web-browser.scm: use the new web
browser plug-in to add menu entries to <Toolbox>/Help/