[ Merge Gnome tool bars from Gnus trunk ]

[ Merge Gnome tool bars from Gnus trunk ]

* message.el (message-tool-bar-zap-list, message-tool-bar)
(message-tool-bar-gnome, message-tool-bar-retro): New variables.
(message-tool-bar-local-item-from-menu): Remove.
(message-tool-bar-map): Replace by `message-make-tool-bar'.
(message-make-tool-bar): New function.
(message-mode): Use `message-make-tool-bar'.

* gnus-sum.el (gnus-summary-tool-bar)
(gnus-summary-tool-bar-gnome, gnus-summary-tool-bar-retro)
(gnus-summary-tool-bar-zap-list): New variables.
(gnus-summary-make-tool-bar): Complete rewrite using
`gmm-tool-bar-from-list'.

* gnus-group.el (gnus-group-tool-bar, gnus-group-tool-bar-gnome)
(gnus-group-tool-bar-retro, gnus-group-tool-bar-zap-list): New
variables.
(gnus-group-make-tool-bar): Complete rewrite using
`gmm-tool-bar-from-list'.
(gnus-group-tool-bar-update): New function.

* gmm-utils.el: New file.