Added support for mate on orca startup system

helpers/make-gnome-orca

 #!/bin/sh
 #
-#    Copyright (C) 2017  Ruben Rodriguez <ruben@trisquel.info>
+#    Copyright (C) 2017-2018  Ruben Rodriguez <ruben@trisquel.info>
 #
 #    This program is free software; you can redistribute it and/or modify
 #    it under the terms of the GNU General Public License as published by
@@ -17,12 +17,29 @@
 #    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 #
 
-VERSION=1
-EXTERNAL='deb-src http://archive.ubuntu.com/ubuntu zesty universe'
+VERSION=2
+EXTERNAL='deb-src http://archive.ubuntu.com/ubuntu artful universe'
 
 . ./config
 
-changelog "Backported from zesty"
+cat << EOF | patch -p1
+--- a/src/orca/orca.py     2015-11-09 09:07:53.000000000 -0500
++++ b/src/orca/orca.py  2018-04-01 00:57:01.426307608 -0400
+@@ -40,7 +40,10 @@
+ 
+ try:
+     from gi.repository.Gio import Settings
+-    a11yAppSettings = Settings(schema_id='org.gnome.desktop.a11y.applications')
++    if os.environ['XDG_SESSION_DESKTOP'] == 'mate':
++      a11yAppSettings = Settings(schema_id='org.mate.applications-at')
++    else:
++      a11yAppSettings = Settings(schema_id='org.gnome.desktop.a11y.applications')
+ except:
+     a11yAppSettings = None
+ 
+EOF
+
+changelog "Backported from zesty, added support for mate"
 
 compile