Get rid of ol.FeatureOverlay

This also introduces a wrapX option to the Draw, Modify and Select
interaction.

src/ol/renderer/webgl/webgllayerrenderer.js

@@ -247,7 +247,7 @@ ol.renderer.webgl.Layer.prototype.dispatchComposeEvent_ =
     var render = new ol.render.webgl.Immediate(
         context, center, resolution, rotation, size, extent, pixelRatio);
     var composeEvent = new ol.render.Event(
-        type, layer, render, null, frameState, null, context);
+        type, layer, render, frameState, null, context);
     layer.dispatchEvent(composeEvent);
   }
 };