Description: Honour plugin property skipFooter before drawing buttons.
Author: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

--- a/include/class_management.inc
+++ b/include/class_management.inc
@@ -306,6 +306,9 @@
             if (isset($current->dialog) && (is_object($current->dialog) || $current->dialog)) {
                 return("");
             }
+            if (isset($current->skipFooter) && $current->skipFooter) {
+                return("");
+            }
         }
 
         // Skip footer if requested;