- 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)

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

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

strcmp(3) will suffice here, also follow the style of the remaining file more closely.

Prodded by: ed

Apply local patches to mandoc and connect it to the build.

- adds a couple more library strings used in the tree
- changes some more to the current groff spelling
- changes page footer to match groff style

Merge mandoc from vendor into contrib and provide the necessary Makefile glue.

It's not yet connected to the build.

Vendor import of mdocml 1.12.1

It is a suite of ISC licensed tools to compile and render mdoc/man pages and
will replace groff for formatting manpages in the base system.

http://mdocml.bsd.lv/