Removed some garbage from IDS-UCS* files.  \nChanged some wording in the README.en about the CDP database.

(ids-format-list): Likewise; add autoload cookie.

`hanyu-dazidian-{vol|page|char}'.

(ids-format-list): New function.

sub-tree with corresponding combined character.

(iddef-read-file): Likewise.

character is not found.
(iddef-check-mapping-buffer): New function.
(iddef-check-mapping-file): New function.

character specified in `->same-ideograph' or `->identical' if the
character has `ucs'.

(morohashi-char-replace-alist): Add some rules.

character if the Daikanwa character has a different `ucs' code point.

`iddef-read-buffer'; don't require `ids-util'.