* viper-cmd.el (viper-envelop-ESC-key): added the option to

* viper-cmd.el (viper-envelop-ESC-key): added the option to
	translate all ESC key sequences.
	(viper-goto-mark-subr): restore markers for files for which
	they were saved.
	* viper-init.el (viper-translate-all-ESC-keysequences): new variable.
	* viper-util.el (viper-set-replace-overlay-glyphs,
	viper-set-replace-overlay): always check if the replacement
	overlay is live.
	* viper.el (viper-vi-state-mode-list): added major modes.
	* ediff-wind.el: minor comment changes.
	* ediff.el: copyright notice date fix.