Add renderer guess in example shared file

& use it in every example.

examples/wms-image-custom-proj.js

@@ -1,6 +1,5 @@
 goog.require('ol.Attribution');
 goog.require('ol.Map');
-goog.require('ol.RendererHints');
 goog.require('ol.View2D');
 goog.require('ol.layer.Image');
 goog.require('ol.proj');
@@ -51,7 +50,7 @@ var layers = [
 
 var map = new ol.Map({
   layers: layers,
-  renderer: ol.RendererHints.createFromQueryData(),
+  renderer: exampleNS.getRendererFromQueryString(),
   target: 'map',
   view: new ol.View2D({
     projection: projection,