     @description Move a directory node to a new tree position
        @param {Object} dragNode [Tree directory node to be moved]
        @param {Object} dropNode [Tree node append destination]
      */
      moveDir: function (dragNode, dropNode) {
        var el = this;
        var success;
        var oldDragPath = dragNode.path;
        var path, staticPath, node;
        // Drop node
        success = el._moveFile(dragNode, dropNode);
        // Check directory children
        if (success && dragNode.