* lisp/simple.el (special-mode-map): Bind "h" to `describe-mode';

* lisp/simple.el (special-mode-map): Bind "h" to `describe-mode';
bind "z" to `kill-this-buffer'.
(completion-list-mode-map): Bind "z" to `kill-this-buffer'.
* lisp/apropos.el (apropos-mode-map): Inherit from `special-mode-map'.
(apropos-mode): Inherit from `special-mode'.
* lisp/arc-mode.el (archive-mode-map): Inherit from `special-mode-map'.
* lisp/bookmark.el (bookmark-bmenu-mode): Define using
`define-derived-mode' inheriting from `special-mode'.
* lisp/dired.el (dired-mode-map): Inherit from `special-mode-map'.
* lisp/image-mode.el (image-mode-map): Ditto.
* lisp/replace.el (occur-mode): Define using
`define-derived-mode' inheriting from `special-mode'.
* lisp/tar-mode.el (tar-mode): Inherit from `special-mode'.
* lisp/calendar/diary-lib.el (diary-fancy-display-mode):
Inherit from `special-mode-map'.
* lisp/emacs-lisp/ert.el (ert-simple-view-mode, ert-results-mode):
Inherit from `special-mode'.
* lisp/emacs-lisp/package.el (package-menu-mode-map): Copy from
`special-mode-map'.
(package-menu-mode): Define using `define-derived-mode'
inheriting from `special-mode'.
* erc/erc-list.el (erc-list-menu-mode): Inherit from `special-mode'.
* lisp/net/xesam.el (xesam-mode): Inherit from `special-mode'.
(xesam-mode-map): Define separately.
* lisp/play/solitaire.el (solitaire-mode): Inherit from `special-mode'.
* lisp/progmodes/compile.el (compilation-minor-mode-map)
(compilation-mode-map): Inherit from `special-mode-map'.
* lisp/vc/diff-mode.el (diff-mode-shared-map):
Inherit from `special-mode-map'.
* lisp/vc/log-view.el (log-view-mode-map): Add a comment.