latest protocol submodule

chase · chase · commit c103f6b04431 · 2019-04-11T20:29:36.000-07:00
diff --git a/protocol b/protocol
@@ -1 +1 @@
-Subproject commit 348e34dd59a15ec149a5036b0b70b34be0b40668
+Subproject commit a6c5f76ceb6744254084ca3737fdb14274639de3
