Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

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

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

Don't add LIBADD=ipf to libipf itself.

This had no real impact since libipf is a static INTERNALLIB. It does conflict
with an assertion I am adding for LIBADD though.

Sponsored by: EMC / Isilon Storage Division

Convert sbin/ to LIBADD
Reduce overlinking

Honour WITH and WITHOUT_INET6_SUPPORT.

Approved by: glebius (mentor)
MFC after: 3 days

Use both NO_WFORMAT and NO_WARRAY_BOUNDS for sbin/ipf, it would be too
disruptive to actually fix all the warnings, and the code hasn't been
maintained for several years.

MFC after: 1 week

Switch the default WARNS level for sbin/ to 6.

Submitted by: Ulrich Spörlein

Fix the contents of the underneath .depend files and "make checkdpadd".

create a new build heirarchy for ipfilter tools