return const correct reverse iterator to prevent Solaris compiler from choking on const conversion
return const correct reverse iterator to prevent Solaris compiler from choking on const conversion

Distrotech/taglib,Distrotech/taglib,black78/taglib,black78/taglib,taglib/taglib,TsudaKageyu/taglib,Distrotech/taglib,taglib/taglib,TsudaKageyu/taglib,black78/taglib,TsudaKageyu/taglib,taglib/taglib