Add Assertion#arreql

Needed because expect.js's eql does not support typed arrays.

test/expect-0.2.0-ol3/expect.js

@@ -371,6 +371,20 @@
     return this; 
   };
 
+  /**
+   * Checks if the array sort of equals another array.
+   *
+   * @api public
+   */
+
+  Assertion.prototype.arreql = function (obj) {
+    this.assert(
+        goog.array.equals(this.obj, obj)
+      , function(){ return 'expected ' + i(this.obj) + ' to sort of equal ' + i(obj) }
+      , function(){ return 'expected ' + i(this.obj) + ' to sort of not equal ' + i(obj) });
+    return this;
+  };
+
   /**
    * Checks if the obj sortof equals another.
    *