Remove global export

EQ is already attached to window when there is no CJS context. No need doing it twice, plus it messes with CJS (this is undefined)

Author: JSteunou

src/ElementQueries.js

@@ -17,7 +17,7 @@
      * @type {Function}
      * @constructor
      */
-    var ElementQueries = this.ElementQueries = function() {
+    var ElementQueries = function() {
 
         var trackingActive = false;
         var elements = [];
@@ -506,4 +506,4 @@
         window.ElementQueries = ElementQueries;
         ElementQueries.listen();
     }
-})();
+})();