disable retina support again

index.html

@@ -52,7 +52,7 @@
 			var world;
 			window.onload = function () {
 				console.log("is Retina supported: " + isRetinaSupported());
-				// disableRetinaSupport();
+				disableRetinaSupport();
 				world = new WorldMorph(document.getElementById('world'));
                 world.worldCanvas.focus();
 				new IDE_Morph().openIn(world);