Branch for more survey about LNet concurrency

LNet branch for new o2iblnd protocol (b15983, b13621, b14425, b14358)

libcfs tag for b_hd_lnet_smp

add readx/writex branch

for interoperability. So updating buildcvs accordingly

b=13058

update buildcvs

b=13058

update buildcvs

missing ;;
b=16383

Tab and space fixes for last commit in buildcvs

add b_head_procfs in buildcvs

add b_head_libcfs to build/buildcvs

Updated library names and paths due to zfs-lustre changes.
Updated lustrecvs to show helpful message if mercurial is missing.
Changed default zfs-lustre path from zfs-lustre/ to lustre/zfs-lustre/.
Added paths of zfs-lustre tools to test-framework.sh.

b=14778
i=alex.zhuravlev
i=manoj.joseph

b=15969

Instead of fighting with a special case of having libcfs only exist on HEAD, I
created an empty branch for b1_x in libcfs.

b=16069

Make sure the wildcard cases are actually last.

b=16069

Checkout libcfs for HEAD.
Also move the b_hd_* wildcard case to bottom, so it doesn't override specific setting for other branches.

i=rread
use HEAD versions of ldiskfs and lnet on generic b_hd_* derived branches

-   use lnet HEAD for HEAD, b_HEAD_AT, b_head_capa, and b_head_interop_disk.

-   use lnet branch b1_x for lustre 1.x releases.

i=Adilger

integrate lustre-iokit into normal build process

b=15563

repositories.

update module tags for new uMDS branch.

i=Adilger

integrate lustre-iokit into normal build process

Code related to task interop_disk_fidea, this will take care off basic operation interoperability mode.

b=15563
update buildcvs

	add iam tag for umds cleanup branch, required for dynlock changes.

fix to get currect ldiskfs module for b_hd_umds_cleanup branch.