Less context

This change removes all changes that were anticipated here for
WMS GetFeatureInfo handling, including the IWMS interface and
the goog.provide for 'ol.tilegrid'. I'll create a separate pull
request for WMS GetFeatureInfo eventually, taking into account
the suggestions from the discussion in #402.

src/ol/source/singleimagewmssource.js

@@ -11,14 +11,13 @@ goog.require('ol.source.wms');
 
 /**
  * @constructor
- * @implements {ol.source.IWMS}
  * @extends {ol.source.ImageSource}
  * @param {ol.source.SingleImageWMSOptions} options Options.
  */
 ol.source.SingleImageWMS = function(options) {
   var imageUrlFunction = goog.isDef(options.url) ?
       ol.ImageUrlFunction.createFromParamsFunction(
-          options.url, ol.source.wms.getUrl) :
+          options.url, options.params, ol.source.wms.getUrl) :
       ol.ImageUrlFunction.nullImageUrlFunction;
 
   goog.base(this, {
@@ -30,16 +29,6 @@ ol.source.SingleImageWMS = function(options) {
     imageUrlFunction: imageUrlFunction
   });
 
-  /**
-   * @inheritDoc
-   */
-  this.url = options.url;
-
-  /**
-   * @inheritDoc
-   */
-  this.params = options.params;
-
   /**
    * @private
    * @type {ol.Image}