Merge branch '5749-webservice-errors' into '1.3-dev'

Resolve "Webservice errors"

See merge request fusiondirectory/fd!104

include/simpleplugin/class_simplePlugin.inc

@@ -712,7 +712,7 @@ class simplePlugin
     return $this->header.$smarty->fetch($this->templatePath);
   }
 
-  protected function getDisplayHeaderInfos()
+  public function getDisplayHeaderInfos()
   {
     $plInfo   = pluglist::pluginInfos(get_class($this));
     $disabled = $this->acl_skip_write();