This could crash a qswnal client engaged in bulk READS with a crashing server

- small improvements in lmv.
- fixed possible freeing of not allocated memory pointer in mds_connect()

- fixes and clanups in cmobd.sh and cobd.sh
- changes in lconf about module loading in OSD and MDSDEV.
- fixes in lconf about mount options forming.
- fixes in lmc about client ref managing.
- fixes in lconf about cmobd and cobd setup.

- changed mds_alloc_inode_sid() to allocate lustre_id in memory if there is
no passed one. This makes mds stuff do not use lustre_id allocated on stack
if there is only need to allocate inode sid without using it later. This
makes stack consumption smaller by 40 bytes in each such a case.

- in mds_setup() whrn comparing strings passed from userspace use strncmp()
- root lustre_id should be set up also in cases when there is no profile.
- making do not use lustre_id allocated on stack in places where it is possible.

- moving mds_finish_transno() calling to place where dput() for dchild is
already called to make sure, that unlink op got to current transaction.

- lots of changes in lconf. MDSDEV stuff is changed substantionaly. Removing
bugs prone code, replacing it by new one about setting up MDS, LMV, etc.
Added more verbose messages about MDS, LMV configuration. Removed redundant
stuff about forming mount options. It now is moved to function and be used from
few places.

- fixes in CMOBD and COBD objects about using LMV.

- fixed double client_ref adding to LMV, what led to double client config
writing on MDS setup.

- added ldiskfs module info generation to portals/utils/debug.c
- added packing/unpacking for mea in lmv_obd.c
- small cleanups.

HEAD is gonna to be only 2.6.x oriented.

This decreased stack consumption substantialy and 16K is enough.

- returned back sanity-cmobd.sh, whcih was lost after last merge.
- added sanity-fid.sh, which checks fid management correctness.

r=adilger
Update printing of pid in portals_id2str to print in correct place with correct
limit. Also updated format string to match comments elsewhere.

that is unsigned long too.
- expanding all ->valid fields to 64bit, as it is exhaused and there is no free bits.