x11-servers/xorg-server: Update to 1.14

The X.Org server has been updated to 1.14. The changes it brings are described
in a post on the Graphics team blog:
http://blogs.freebsdish.org/graphics/2014/11/19/xserver-1-14-update-ready/

The most noticable change is the DEVD input device autodetection backend
which is enabled by default, replacing the HAL backend. The keyboard
layout configuration must be migrated from HAL's .fdi files to X.Org
files. The procedure is explained in the post mentionned above.

Several ports were removed with this update, mainly because they are not
compatible with the X.Org server anymore:

o  nvidia-driver-71
o  nvidia-driver-96
o  xf86-input-egalax
o  xf86-video-newport
o  xf86-video-tga

PR: 155696, 181660, 183478 (partially fixed), 188640, 191331
Differential Revision: https://reviews.freebsd.org/D1337
Submitted by: ak (most of the work on the DEVD backend), dumbbell, kwm,

		zeising

Tested by: Many people on freebsd-x11@ and IRC
Reviewed by: kwm, portmgr (antoine)
Approved by: kwm, portmgr (antoine)