(U+5226): Use `<-vulgar*sources' instead of char-ref in `<-vulgar'.

(U+5226): Use `<-vulgar*sources' instead of char-ref in `<-vulgar'.
(U+5227): Likewise.
(U+5231): Use `->subsumptive'.
(C2-2554): Moved into U+5231.
(JSP-333A): Likewise.
(C3-2B43): Moved into U+524F; use `<-vulgar*sources' instead of
char-ref in `<-vulgar'.
(J0-516C): Likewise.
(U+524F): Use `->subsumptive'.
(U+5259): Use `->subsumptive'; use `<-vulgar*sources' instead of
char-ref in `<-vulgar'.
(C3-2F62): Moved into U+5259.
(U+5265): Add `->same' for U+525D; use `<-vulgar*sources' instead of
char-ref in `<-vulgar'.
(J0-5179): Moved into U+5294; use `<-vulgar*sources' instead of
char-ref in `<-vulgar'.
(U+5294): Use `->subsumptive'.