Always request aspects, not current location

This becomes a problem when having this widget
instantiated looking at the followed_tags stream
With the former code de/selecting aspects was
only refreshing the followed_tags stream, not
loading aspect stream posts

public/javascripts/widgets/aspect-navigation.js

@@ -76,7 +76,7 @@
     };
 
     this.generateURL = function() {
-      var baseURL = location.href.split("?")[0];
+      var baseURL = 'aspects';
 
       // generate new url
       baseURL = baseURL.replace('#','');