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

use .Mt to mark up email addresses consistently (final part)

PR: 191174
Submitted by: Franco Fichtner <franco at lastsummer.de>

Add missed `_load' to the `if_foo_load="YES"' line.

PR: docs/176915
MFC after: 1 week

Reference rgephy.4 in man pages of additional MAC drivers also known to
come in combination with these PHYs.

Submitted by: yongari
MFC after: 3 days

Now sge(4) supports TCP segmentation offload (TSO).

Now sge(4) supports hardware VLAN tag insertion/stripping.

Add sge(4) man page and hook up sge(4) to the build.
Also add Xr to appropriate man pages.