Don't install /etc/rc.d/keyserv unless MK_OPENSSL == yes

Sponsored by: EMC / Isilon Storage Division
Constify a parameter of name2oid.  No functional change.

MFC after:	2 months
The ATF source code is now hosted on GitHub.
Delete mentions to removed manpages

Obtained from:  atf (git 23c570d6f393c76dff041360bb5f7779900c7191)
cxgbe(4):  Verify that the addresses in if_multiaddrs really are multicast
addresses.  (The chip doesn't really care, it's just that it needs to be
told explicitly if unicast DMACs are checked for "hits" in the hash that
is used after the TCAM entries are all used up).
ipfilter bug #558 add in some missing frag table function comments.

Approved by:	glebius (mentor)
Obtained from:	ipfilter CVS repo (r1.36)
Merge remote-tracking branch 'freebsd/master' into hardened/current/hardening