- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

MFC r280849,280915-280916,281015-281016,282097,282408,282415,283542,
284864,285169-285170,285435:

ntp 4.2.8p3.

Relnotes: yes
Approved by: re (?)

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

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

Mechanically kill hard sentence breaks.

The .Nm utility

mdoc(7) police: join split punctuation to macro calls.

mdoc(7) police: use the new features of the Nm macro.

Fix cross-references which referred to xntp* instead of ntp*.

PR: 22483
Submitted by: Philipp Mergenthaler <un1i@rz.uni-karlsruhe.de>

Work around the mdoc argument limit in the Nd name description.

PR: 18465
Submitted by: Kazu TAKAMUNE <takamune@avrl.mei.co.jp>

Add selected manual pages transcribed from the HTML documentation.
Those pages which have not been transcribed are referenced as
gracefully as possible.

There is no perfect section for the ntp_* files, which document
configuration options for the NTP suite, so I'm putting them in
the same section as the pages for the utilities themselves.