LU-1406 ofd: setup local files for OFD

LU-1406 ofd: setup local files for OFD

Setup local files needed for OFD work, initialize server data
and clients data upon OFD setup

Signed-off-by: Mikhail Pershin <tappro@whamcloud.com>
Change-Id: I1ec1fc9c07889009f1404eb26830c63cbbc9f451
Reviewed-on: http://review.whamcloud.com/2854
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Alex Zhuravlev <bzzz@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>