WFS was not requesting correct URL.

git-svn-id: http://svn.openlayers.org/branches/openlayers/2.0@1326 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Tile/WFS.js

@@ -80,7 +80,7 @@ OpenLayers.Tile.WFS.prototype =
         
             for(var i=0; i < this.urls.length; i++) {
                 var params = { BBOX:this.bounds.toBBOX() };
-                var url = this.urls[i] + 
+                var url = this.urls[i] + "&" + 
                           OpenLayers.Util.getParameterString(params);
                 OpenLayers.loadURL(url, null, this, success, failure);
             }