bump registry submodule

Matthew Fisher · Matthew Fisher · commit 3dcf63eda984 · 2014-03-14T15:09:47.000-07:00
diff --git a/images/registry b/images/registry
@@ -1 +1 @@
-Subproject commit 2e9e31097d668198a4a7f81a39052c12783af075
+Subproject commit 6af4f1d9d285b716cebddd7e9884175378931194
