CRM_Core_Page_Basic() should be compatible with CRM_Core_Page()

The run() and browse() methods of CRM_Core_Page_Basic declare arguments that are neither present in the parent class nor in child classes. This generates a PHP warning every time the code of a child class is loaded.

The attached patch removes the arguments from the function signature and instead use func_num_arg() and func_get_arg() to load them.