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

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

Convert to use a SYNPOSIS section that mentions kernel modules.
Also add "device scbus" where needed.

MFC after: 3 days

Sort sections.

Add a HARDWARE section which lists supported devices. Clean up device
lists a bit while I'm here anyway.

Mechanically kill hard sentence breaks and double whitespaces.

Removed whitespace at end-of-line; no content changes. I simply did
cd src/share; find man[1-9] -type f|xargs perl -pi -e 's/[ \t]+$//'

BTW, what editors are the culprits? I'm using vim and it shows
me whitespace at EOL in troff files with a thick blue block...

Reviewed by: Silence from cvs diff -b
MFC after: 7 days

mdoc(7) police: do not split author names in the AUTHORS section.

Miscellaneous fixes: mly -> Nm and eg. -> e.g. .

Normalize the diagnostics list.

Whitespace-only change: apply normal line-breaking style.

Add a manpage for the new 'mly' driver.