(U+5DF7): Use `=>jis-x0208' and `=>jis-x0213-1' instead of

(U+5DF7): Use `=>jis-x0208' and `=>jis-x0213-1' instead of
`=jis-x0208@1997'.
(J78-392B): Unify JX3-392B.
(J90-392B): Use `=ucs@jis/1990' and `=ucs@jis/2000' instead of
`=ucs@jis' for J90U+5DF7; use `=jis-x0213-1@2000' instead of
`=jis-x0213-1' for JX1-392B; add `<-simplified@JP/jis' for J78-392B.
(U+5DFD): Use `=>jis-x0208' and `=>jis-x0213-1' instead  of
`=jis-x0208@1997'.
(B-B453): Moved to the parent node.
(J90-4327): Use `<-simplified@JP/jis' instead of `<-simplified@JP' for
J78-4327.