- 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 unneeded G_PF_CANDELETE flag.

This flag is only used by GEOM so it can be propagated to the character
device's SI_CANDELETE. Unfortunately, SI_CANDELETE seems to do nothing.

Fix orphan() methods of several GEOM classes to not assume that there
is an error set on the provider. With GEOM resizing, class can become
orphaned when it doesn't implement resize() method and the provider size
decreases.

Reviewed by: mav
Sponsored by: FreeBSD Foundation

GEOM_UNCOMPRESS module, can be used with uzip images and with new ulzma images.

Approved by: adrian (mentor)