(U+4EDA-itaiji-001): New character; use `<-denotational' for U+4EDA.

(U+4EDA-itaiji-001): New character; use `<-denotational' for U+4EDA.
(U+6538-itaiji-005): New character; use `<-denotational' for
A-U+6538-itaiji-004.
(A-U+6538-itaiji-004): New abstract node; unify A-U+6538-itaiji-005.
(U+6538-itaiji-004): New character; use `<-denotational' for
A-U+6538-itaiji-004.
(U+4F86): Use `<-denotational@usage' instead of `<-denotational' for
BUCS+4F86; add `<-denotational@component' for A-compU+4F86.
(U-00020217): New character.
(U+4FD6): Use `<-denotational@usage' instead of `<-denotational' for
BUCS+500D; add `sound@ja/on'; unify S-0315; add `<-ancient' for
U+500D; add `<-wrong' for U-00020291; add representative nodes.
(U+4FE2): Apply new conventions for glyph granularity.
(U+500D): Use `<-denotational@usage' instead of `<-denotational' for
BUCS+500D.
(S-0314): Unify U+500D-var-001.
(U-00020291): Apply new conventions for glyph granularity.
(A-compU+4F86): New abstract node.