*   Removed S_???NAL in favour of a single S_NAL

*   NB liblustre needs attention

- 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.

 - add a flag in lustre_msg which indicate message type
 - add a security descriptor into most of messages send to MDSs, which
   include the uid, supplementary groups array etc.
 - add group hash
 - MDS retrive local groups database through upcall, and set/merge with
   which sent from client based on policies (here not totally finished)
 - move root_squash test into separate sanity-sec.sh

2)add clientfsoption in lmc and lconf
3)some fix in cobd for cache miss handler

2) remove and modify some test scripts according to the new lconf and lmc

I haven't re-tested the AMD functionality since landing, but I did
test iozone and dbench to ensure sanity.

Mostly fixes related to using failover MDSs along lmv. This is also related to active_ref handling, etc.

Also fixed the following:
* name of lproc entry where lustre upcall can be seen in error message if upcall is failed.
* removed --master option which was supposed to work along with lmv and now it is obsoleted.
* clanups and fixes both in lconf and lmc

- b1_4 is basically the parent of HEAD, because that's the direction
  that changes flow, as strange as that sounds.  so there's a
  HEAD_BASE tag which sits on b1_4

b_cmobd_merge should not be used for any further development or testing!

  we need this becase client's timeout should be longer then inter-mds recovery may take
- few ugly hacks that allow client to reconnect with old (before failure took place) UUID
- mds_preprw() and mds_preprw() should use l_dput() instead of f_dput()
- SOCKNAL_IO_TIMEOUT has been set to 20 seconds to make discovery of
  stale connection faster
- lconf generates persisten UUIDs for LMV clients
  it each new LMV uses fresh UUID, then each recovered MDS looks like
  new client (target MDS doesn't recognize it's old because of new UUID).
  if target MDS gets restarted, then it'll find more clients in LAST_RCVD
  then it actually had

cMD_PRE_CMD_SMASH are the relevant tags.

The pre-smashing contents of HEAD will be committed by yury into b_cmd as a
merge of the two branches.  These will be stabilized on b_cmd and eventually
landed onto HEAD.

b=2094, b=3138, b=3335, b=3274, b=3293, b=2862, b=3147, b=2350, b=3313
b=3265, b=3315, b=3301, b=3325, b=3329, b=3125, b=3098

b=2912/2922, b=3145 too

b=3057, 2947, 2925, 3050, 3041, 2849, 1662

re-add things CVS mistakenly removed.

b=3058

Clean up the autoconf and automake bits:

 * now liblustre and kernel modules can be built in the same tree
	use --disable-modules, --disable-liblustre to disable those
	bits
 * 2.6 modules are now built as .ko, and lconf can deal with them
 * fixes for builddir != srcdir

do not support http urls until python2, as that is the first occurance of
    urllib2, where the error handling for http is finally sane

r=shaver

allow lconf to get xml configs via http

r=phil

land b_cray_portals_merge on HEAD.  This consists of four families of changes:

1) Eric's work to change some APIs in Lustre's portals to come into line with
   Cray's portals and the spec.

2) add --with-cray-portals= to the build and use it to cut up the build
   when we're building lustre against external includes for Cray's portals.

3) Move some facilities from portals.o into libcfs.o so that Lustre can
   consume them when it is running against Cray's portals.o.

4) Fix up the liblustre build.  These changes have also made it to
   b_cray_delivery recently.

r=robert

overwrite log when running lconf --write_conf