update modules

[mdref/mdref.m6w6.name] / mdref

diff --git a/mdref b/mdref
index 8c22806e566c34287aa78bc481adf43bb39e3501..717d0dc1592361101ef5a8bd7e366cff3121046e 160000 (submodule)
--- a/mdref
+++ b/mdref
@@ -1 +1 @@
-Subproject commit 8c22806e566c34287aa78bc481adf43bb39e3501
+Subproject commit 717d0dc1592361101ef5a8bd7e366cff3121046e