- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r256467:

Delete all of the old RDMA code (except krping, which was switched to
use sys/ofed some time back). This has been sitting around as dead code
in the tree for a very long time.

Approved by: re (hrs)

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Assorted fixes to krping. Disconnect the rest of sys/contrib/rdma from
the build while here. sys/ofed has more recent RDMA code and should be
used instead. We should probably move krping out of sys/contrib/rdma
and get rid of the rest of it.

Obtained from: Chelsio

add makefiles for rdma