(kkc-show-conversion-list-index-chars):

(kkc-show-conversion-list-index-chars):
Default value changed.
(kkc-keymap): Renamed from kkc-mode-map.  Key binding for
kkc-non-kkc-command are deleted.
(kkc-mode): This function deleted.
(kkc-canceled): This variable deleted.
(kkc-converting): New variable.
(kkc-region): 3rd optional arg is deleted.  Completely rewritten
to adjust for the change in quail.el.
(kkc-terminate, kkc-cancel): Adjusted for the change of
kkc-region.
(kkc-non-kkc-command): This function deleted.
(kkc-select-from-list): Use last-input-event instead of
last-input-char.  Put an unknown event back to
unread-input-method-events.