Fixed XSRF issue which potentially allowed malicious users to craft a link which could change the order of a node's children if accidentally visited by a site admin. See SA-CONTRIB-2012-099 - Node Hierarchy - Cross Site Request Forgery - CSRF
Issue #1003582 by derjochenmeyer: Fixed notice error
Issue #386470 by derjochenmeyer: Added label and exclude options to the Parent Node Views field
Issue #813868 by jonathan_hunt: Checked to make sure $node was populated for Node Hierarchy actions (Views, Site Outline)
Issue #375581 by pivica: Fixed recursive deletion of children nodes.