Change where revalidate gets its options from (#112)

It was defaulting to "window" for this. Now uses private scrope for the options.

blazy.js

@@ -71,7 +71,7 @@
  /* public functions
  ************************************/
  scope.revalidate = function() {
- initialize(this);
+ initialize(scope);
  };
  scope.load = function(elements, force) {
  var opt = this.options;
@@ -364,4 +364,4 @@
  fn.apply(scope, arguments);
  };
  }
-});
+});