submodule: Updated xpub v0.6.

Thomas Venries · Thomas Venries · commit 54a6f89fa2aa · 2017-03-19T22:08:45.000+01:00
diff --git a/xpub b/xpub
@@ -1 +1 @@
-Subproject commit 65e692c22ec48fa8e18f8a9c94b5dd9861cf5214
+Subproject commit 85589f176650bee971b369ef900bd28ba89c82e2
