LU-575 MRP-133 lfs find speedup

LU-575 MRP-133 lfs find speedup

lfs find should send getattr on mds only if needed;
lfs find should not break on matched obd but check other parameters as well;
lfs find time compare fixes;

Reviewed-by: Alexey Lyashkov <alexey_lyashkov@xyratex.com>
Reviewed-by: Colin Faber <colin.faber@xyratex.com>
Signed-off-by: Vitaly Fertman <vitaly_fertman@xyratex.com>
LU-575 MRP-260 fix quota tests

a fix for quota size units which conflicted with lfind size units

Reviewed-by: Alexey Lyashkov <alexey_lyashkov@xyratex.com>
Reviewed-by: Andrew Perepechko <Andrew_Perepechko@xyratex.com>
Signed-off-by: Vitaly Fertman <vitaly_fertman@xyratex.com>
Change-Id: I42b2acee18c6c9e0d787b97a5e957431d2bb4bf1
Reviewed-on: http://review.whamcloud.com/1195
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>