(U-000205B1): Use `<-vulgar*sources' instead of char-ref in

(U-000205B1): Use `<-vulgar*sources' instead of char-ref in
`<-vulgar'.
(U+51B2): Likewise.
(U+51B3): Likewise; use `->subsumptive'.
(C3-227D): Moved into U+51B3.
(U+51B5): Use `<-vulgar*sources' instead of char-ref in
`<-vulgar'.
(J0-515A): Likewise; moved into U+51C9.
(U+51C9): Use `->subsumptive'.
(J0-5245): Moved into U+51D6; use `<-vulgar*sources' instead of
char-ref in `<-vulgar'.
(U+51D6): Use `->subsumptive'.
(U+34D5): Use `->subsumptive'.
(J83-515B): Moved into U+51DB.
(C3-4B30): Likewise.
(J90-515B): Likewise.
(U+51DB): Use `->subsumptive'.