mds: turn on mds_bal_frag (dir fragmentation) by default
mds: turn on mds_bal_frag (dir fragmentation) by default

Let the fun begin!

Signed-off-by: Sage Weil <6dd34506bbd5e58221bbb3e4732d97c91f02277b@newdream.net>

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