- distro-config for Linux should stay fine as it is explict about
  gnome-vfs
- this makes e.g. a:
    sudo apt-get build-dep libreoffice
    ./autogen.sh
  work out of the box for Ubuntu Quantal

Change-Id: I5a85f7af80f798a683e5c92b329ed3d4fd250a1f
Reviewed-on: https://gerrit.libreoffice.org/3114Reviewed-by: Michael Meeks <michael.meeks@suse.com>
Reviewed-by: Tomáš Chvátal <tchvatal@suse.cz>
Tested-by: Tomáš Chvátal <tchvatal@suse.cz>
Reviewed-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>
Tested-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>