Welcome Mate Desktop 1.8

The porting work as been done by gnome@ (kwm) and Eric Turgeon
(ericturgeon@ghostbsd.org)

Canonicalize some old USE_PY*

With hat:	portmgr

Convert a bunch of USE_XZ to USES=tar:xz.

Approved by:	portmgr (not really, but touches unstaged ports)

The FreeBSD x11@ and graphics team proudly presents
a zeising, kwm production, with help from dumbbell, bdrewery:

NEW XORG ON FREEBSD 9-STABLE AND 10-STABLE

This update switches over to use the new xorg stack by default on FreeBSD 9
and 10 stable, on osversions where vt(9) is available.
It is still possible to use the old stack by specifying WITHOUT_NEW_XORG in
/etc/make.conf .
FreeBSD 8-STABLE and released versions of FreeBSD still use
the old version.
A package repository with binary packages for new xorg will
be available soon.

This patch also contains updates of libxcb and related ports, pixman, as well

Consolidate the docbook ports into -sgml and -xml variants.

Submitted by:	hrs (based on)
Sponsored by:	Absolight

Chase docbook cleanup dependencies.

Sponsored by:	Absolight

Say hello to Mate 1.6.

Mate is a lite desktop forked from gnome2.

Most of the work is done by Jeremy Messenger (mezz@). The only thing I did
was update a few ports to later 1.6 release and attempting to keep up with
ports infra changes. Resulting bugs are all mine.

Mate is a sort of replacement for Gnome 2. So people wanting to keep a
Gnome 2 like desktop should switch. Gnome 2 will be replaced by Gnome 3
in the near future. This switch will be announce with a transition time
so people have more time to switch if they haven't already.

This release was made possible by everyone that send friendly pokes to
keep mate on my mind.

Approved by:	portmgr (bapt)