obsync: FileStore: store ACLs in xattrs
obsync: FileStore: store ACLs in xattrs

Store the ACL XML in extended attributes rather than in side files.

Signed-off-by: Colin McCabe <7b35906f1d014e74a9dc8c913eb229119df647aa@dreamhost.com>

ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph