subclass WFS layer off of Layer.Marker as well.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@178 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer/WFS.js

@@ -3,7 +3,8 @@
 */
 OpenLayers.Layer.WFS = Class.create();
 OpenLayers.Layer.WFS.prototype = 
-  Object.extend( new OpenLayers.Layer.Grid(), {
+  Object.extend(new OpenLayers.Layer.Grid(),
+    Object.extend(new OpenLayers.Layer.Marker(), {
 
     /** @final @type hash */
     DEFAULT_PARAMS: { service: "WFS",
@@ -62,4 +63,6 @@ OpenLayers.Layer.WFS.prototype =
 
     /** @final @type String */
     CLASS_NAME: "OpenLayers.Layer.WFS"
-});
+}
+)
+);