- fixed debug message in ldlm_lock_put() to less confusing. Former looked

- fixed debug message in ldlm_lock_put() to less confusing. Former looked
like this:

"final lock_put on destroyed lock, freeing namespace ..."
whereas it should like this:
"final lock_put on destroyed lock, freeing it. namespace ..."

- cleanups in mds_init_lov_desc()

- in mds_notify() remove obd_set_info("mds_conn") before calling mds_lov_start_synchronize()
as it will be called by mds_lov_start_synchronize() itself.

- in filter_set_info() using IS_KEY() macro