Removed unnecessary comments. Added some old specs back for the fall-through test. Added new test for adding contents that are text vs nodes, and updated the directive processor accordingly. Added directiveRenderCount to attr directive processor, meaning it only increases if a node has been re-rendered and not every time the remder function is called. This has not been added to the class directive processor because there currently is no way of checking if a class is a bound-class or not and, therefore, only re-rendering the node if the class is a bound class.