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

Add dependency to uether.

Reviewed by: hselasky

Cross reference cdce(4), ipheth(4) and urndis(4) from each other.

MFC after: 1 week

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

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

Use the newly brought %U macro.

Work around an apparent mdoc(7) bug.

Spotted by: marius
Discussed with: ru

Bump .Dd

Reminded by: simon

Add HARDWARE section.

Reviewed by: brueffer

Break long lines and kill a few instances of EOL whitespace.

Noticed by: ru

Add a "Load module on start up" comment, similar to mac_*.4 pages[1].
Quote .Cd and .Nd text.
Bump doc date.

Requested by: some user through ru
Supported by: ru, dwmalone, brueffer

(Mostly) markup fixes.

Approved by: re (blanket)

Expand contractions.

Approved by: brueffer (mentor)

Add USB Communication Device Class Ethernet driver. Originally written for
FreeBSD based on aue(4) it was picked by OpenBSD, then from OpenBSD ported
to NetBSD and finally NetBSD version merged with original one goes into
FreeBSD.

Obtained from: http://www.gank.org/freebsd/cdce/
NetBSD
OpenBSD