ok jmc naddy

with different magic numbers, so we need to add some functions instead
of just asking the user to truncate as desired. Sigh.
SHA512 is quite a bit faster than SHA256 on 64 bit CPUs,
but 256 bit hashes are usually quite sufficient. Best of both.
ok deraadt tom

from Jacob Berkman, ok beck@

OK many

shortly when we use the hardware thread register in userland

Discussed with and loved by many.
OK tedu@, tom@, deraadt@.

part of the original ISC license that we use in OpenBSD.  Done for
files were Henning is the original author.
OK henning@ deraadt@

ok deraadt@ yasuoka@ reyk@

ok beck

tested by many (thanks!) ok tedu, guenther@

ok krw@ millert@

ok jca@ krw@

as readlink() will tell you that more cheaply.
ok millert@

ok deraadt@

ok deraadt@

ok deraadt@

ok deraadt@

functions out the way of the main body;
ok guenther

Merge the manual pages and call them deprecated there.
ok and manpage tweak jmc@, ok natano@

remove some references to differences between versions 6 and 7.
ok jmc, millert, tedu

workarounds.  Some of them will soon stand in the way of armv7.
Off to the attic you go.

ok jung@ (some time ago) phessler@

ok deraadt@

pseudo-interfaces.
This unbreak vlan(4) on top of tap(4) since the refactoring to turn it
MP-safe.
ok claudio@, deraadt@

changes - map the previous configuration to the equivalent in the new
groups. This will be revisited post release.
Discussed with beck@

Found by Frank Scheiner, thanks for reporting this.
OK krw, halex
'cool' deraadt

with a little help from jmc@ for the man page bits
ok jca@  and a reluctant tedu@

ok kettenis@ deraadt@ jasper@

In the event of a failure in _rs_allocate for rsx, we still have a reference to
freed memory for rs on return. Not a huge deal since we subsequently abort in
_rs_init, but it looks strange on its own.
ok deraadt@