(A-cgnU+7591): Delete `<-denotational' for BUCS+7591.
(U+7591): Add `<-denotational@usage' for BUCS+7591.
(HNG-KAR1430-1): Likewise.
(U+7591-itaiji-005): Likewise.
(HNG-KHI0494-0): Likewise; add `<-HNG@chise' for U-
0002DF05.
(HNG-KAR1430-2): Add `<-denotational@usage' for BUCS+7591.
(U-
0002DF05): New character; use `<-denotational' for A-cgnU+7591; use
`<-denotational@usage' for BUCS+7591.
(U+7591-itaiji-006): Add `<-denotational@usage' for BUCS+7591.
(A-U+2DF05-itaiji-001): New abstract node; use `<-denotational' for
A-cgnU+7591; use `<-denotational@usage' for BUCS+7591.
(U+2DF05-itaiji-001): New character; use `<-denotational' for
A-U+2DF05-itaiji-001.