* liece-version.el (liece-version): Bump up to 2.0.0.

* liece-version.el (liece-version): Bump up to 2.0.0.

* liece-menu.el (liece-menu-callback-set-operators): Rename from
`liece-menu-callback-mode+o'.
(liece-menu-callback-set-voices): Rename from
`liece-menu-callback-mode+v'.
(liece-menu-callback-unset-operators): Rename from
`liece-menu-callback-mode-o'.
(liece-menu-callback-unset-voices): Rename from
`liece-menu-callback-mode-v'.

* liece-nick.el (liece-nick-region-opers): Abolish.
(liece-nick-region-voices): Abolish.
(liece-nick-update-region): Don't set them.

* liece.el (liece-dialogue-mode-map): Don't bind `liece-command-exec',
`liece-command-lusers' and `liece-command-userhost'.

* liece-commands.el (liece-command-exec): Abolish.
(liece-command-inline): Abolish.
(liece-command-set-operators): Rename from `liece-command-mode+o'.
(liece-command-set-voices): Rename from `liece-command-mode+v'.
(liece-command-qualify-nicks): New function.
(liece-command-mode-o): Abolish.
(liece-command-mode-v): Abolish.
(liece-command-userhost): Abolish.
(liece-command-lusers): Abolish.