`x_alloc_lighter_color_for_widget' is a float, not an int, and it's
a multiplicative factor, so the name `delta' is inaccurate. Always base
disabled foreground on the normal foreground. Don't use the temporary
variable `temp'.
(find_next_selectable): Return current item when the menu is not poped up.
Rename `inactive_gc' to `disabled_gc'.
Use lighter/darker color for disabled menu items instead of using stipple.
Use stipple only when better color can not be determined automatically.
(filesets-open-file-function, filesets-save-buffer-function): Likewise.
(filesets-tree-max-level): Doc fix.
(filesets-commands, filesets-external-viewers)
(filesets-ingroup-patterns): Mark as risky.
(filesets-cache-hostname-flag): Doc fix.
(filesets-menu-cache-file): Doc fix. Mark as risky.
(filesets-menu-before, filesets-menu-path, filesets-menu-in-menu):
Don't defcustom them if running in Emacs.
(ibuffer-mode-view-menu): Unused variables; deleted.
(ibuffer-find-file): Pass wildcard flag to `find-file' correctly.
(ibuffer-mode-groups-popup): New variable.
(toplevel): Bind filter group menu entries in it. Add :enable
forms for some menu items.
(toplevel): Bind [down-mouse-3] in `ibuffer-mode-filter-group-map'
to `ibuffer-mouse-popup-menu'.
(ibuffer-mouse-popup-menu): Test whether or not we're on a filter
group name, and if so, pop up a filter group menu.
Push killed group on `ibuffer-filter-group-kill-ring'.
(ibuffer-kill-line): Document. Don't push killed group ourselves.
(ibuffer-yank-filter-group): Renamed from `ibuffer-yank'.
(ibuffer-insert-filter-group-before): New function, broken out from
`ibuffer-yank'.
(ibuffer-yank): Now just call `ibuffer-yank-filter-group'.
which will cause any "export" commands within any eshell buffer to
modify the global Emacs environment. It defaults to nil, which means
that such commands will only modify that Eshell buffer's environment.
(eshell-var-initialize): Initialize `eshell-modify-global-environment'.
