- don't confuse OST by non-zero connect flags from clients. OST expects
   group number while only MDS can have a group

b=6411 : enable rate-limiting of console error messages, and some console
         errors now go only to the kernel log.  Use CERROR/CWARN where
	 appropriate to allow rate-limiting of these messages.
b=1693 : add /proc/sys/portals/catastrophe entry which will report if
         that node has previously LBUGged.

 - drop fail_loc to 0 in test 20

Taken from b1_4 branch.  Thanx nic and adilger.

   isn't involved.

      which caused bug 6436

found on the remote node.
b=6281

crypto api prototype
1) add gs_obd and gsc_obd
2) cleanup in ll_fill_super and lustre_common_fill_super
3) some modification in lconf and lmc

- changed name convention in cobd, thus all MD related methods have _md_ prefix like cobd_md_getstatus(),
all data layer related have _dt_prefix and common one like cobd_connect() have no prefix at all.

- added hack to mdc_intent_lock() and cobd_md_intent_lock() to distinguish cobd case in mdc_intent_lock() and do not raise -ESTALE if obtained lock is not coherent wiht store id due to generation after switchin to cache cobd. This is dirty hack of course, but it should be for a while to pass cmobd/cobd related tests and Peter agreed it ok for now.

- added canceling unused locks before disconnecting master/cache exports in cobd_iocontrol()

- added lmv_cancel_unused() to cancel unused locks from llite correctly instead of using
direct ldlm_cli_cancel_unused() on lmv namespace.

- removed not used ll_mdc_cancel_unused()

code adjustment.

*  vibnal 6361 fix: change QP creation tunables & HCA name

*  vibnal 6436 fix: don't LBUG when QP creation fails

let lconf be able to accept --mds_sec but ignore it.
llmount.c is able to accept mds_sec option but ignore it,
so it doesn't need change for this purpose.

for h_hd_sec_client_oss, it also needs the change to lconf
to accept --sec but ignore it.

after client-oss landing, we will make it integrated.