Disable default expanded icons if other icons are present

[Maxw19755]

Line 134

 if (node.nodes) {
                   if (!node.icon){
                      var treeItemStateIcon = $(templates.treeviewItemStateIcon)
                          .addClass((node.expanded)?_this.settings.expandIcon:_this.settings.collapseIcon);
                      treeItem.append(treeItemStateIcon);
                  }
              }