- 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

Remove example for linking /dev/vga to /dev/ttyv0, this hasn't been
required since X version 4.3.0.

PR: conf/161847
Submitted by: eadler
MFC after: 2 weeks

Update the example rules in devfs.conf to reflect the changes since ATA_CAM.
While here, add another example rule, as many applications these days
expect to find /dev/dvd instead.

MFC after: 3 days

Removed whitespace at BOF, EOL & EOF.

Allow users to configure stuff in /dev once again by re-doing the devfs
script to read /etc/devfs.conf, and take appropriate actions based on
what it finds there.

The (commented out) examples in the new devfs.conf file are taken in
part from the old rc.devfs script.