- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

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

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

Add a directory in /var/run to store ppp(8) command sockets.

PR: bin/29966
Approved by: brian
MFC after: 4

$Id$ -> $FreeBSD$

Add a rather complicated but impressive example of how
to implement multi-link ppp over more than one ISP with
the ability to lose ISPs without loss of connectivity.

It *requires* that you either have administrative access
to a machine that's already connected to the 'net or at
least know a really nice person that does.