* viper-cmd.el (viper-prefix-commands): make into a defconst.

* viper-cmd.el (viper-prefix-commands): make into a defconst.
	(viper-exec-buffer-search): use regexp-quote to quote the buffer
	string.
	(viper-minibuffer-setup-sentinel): make some variables buffer-local.
	(viper-skip-separators): bug fix.
	(viper-set-searchstyle-toggling-macros): allow to unset macros in a
	particular major mode.
	(viper-del-backward-char-in-replace): don't put deleted char on the
	kill ring.

	* viper-ex.el (viper-color-display-p): new function.
	(viper-has-face-support-p): use viper-color-display-p.

	* viper-keym.el (viper-gnus-modifier-map): new keymap.

	* viper-macs.el (viper-unrecord-kbd-macro): bug fix.

	* viper-util.el (viper-glob-unix-files): fix shell status check.
	(viper-file-remote-p): make equivalent to file-remote-p.

	* viper.el (viper-major-mode-modifier-list): use
	viper-gnus-modifier-map.