[sushi] mainWindow: specify GdkX11 version to 3.0

[Cosimo Cecchi <cosimoc src gnome org>]

commit 9abfea53f833a16a5abca194380814cdd8f96761
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Sat Feb 11 15:16:24 2017 -0800

    mainWindow: specify GdkX11 version to 3.0
    
    Or the 4.0 version may try to get loaded on a system that has both.

 src/js/ui/mainWindow.js |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/js/ui/mainWindow.js b/src/js/ui/mainWindow.js
index a2271d2..48ad33d 100644
--- a/src/js/ui/mainWindow.js
+++ b/src/js/ui/mainWindow.js
@@ -23,6 +23,8 @@
  *
  */
 
+imports.gi.versions.GdkX11 = '3.0';
+
 const Clutter = imports.gi.Clutter;
 const ClutterGdk = imports.gi.ClutterGdk;
 const Gdk = imports.gi.Gdk;