+ * Support configuration variable EXIT_ON_MISSING_PACKAGES to exit
+ with returncode != 0 if a requested package isn't available on the
+ resulting ISO.
+ * Drop memtest86+ from Depends as it's shipped by grml-live-addons
+ nowadays (see issue717). Instead be more verbose in the warning
+ message if neither the one from grml-live-addons nor memtest86+
+ can be found.