Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

Fix typos and spelling mistakes.

mdoc: move remaining sections into consistent order

This pertains mostly to FILES, HISTORY, EXIT STATUS and AUTHORS sections.

Found by: mdocml lint run
Reviewed by: ru

Added missing BSD license text to the cmx.4 manpage.

Noticed by: brueffer

Commit cmx(4), a driver for Omnikey CardMan 4040 PCMCIA smartcard readers.

PR: kern/114582
Submitted by: Daniel Roethlisberger <daniel@roe.ch>
Reviewed by: imp, myself
Tested by: johans, myself
MFC after: 2 weeks