xorg-server: Changes to 'ubuntu-vivid-lts'

[Timo Aaltonen <tjaalton@moszumanska.debian.org>]

New branch 'ubuntu-vivid-lts' available with the following commits:
commit 439b4b7c736fb97754a42409305f7e436b9ad874
Author: Timo Aaltonen <tjaalton@debian.org>
Date:   Wed Sep 2 16:32:29 2015 +0300

    release to trusty

commit 78fb5b28609ce98bea38b059f923db94251cafa3
Merge: 9223eba e02d20e
Author: Timo Aaltonen <tjaalton@debian.org>
Date:   Wed Sep 2 16:22:33 2015 +0300

    Merge branch 'ubuntu-vivid' into lts-vivid

commit 9223ebaa26bb30b7cb32a77a88bf5da87aaf376b
Author: Timo Aaltonen <tjaalton@debian.org>
Date:   Wed May 13 07:23:59 2015 +0300

    Backport vivid package for lts-vivid stack.