Fix submodules

diff --git a/lib/mezzanine-agenda b/lib/mezzanine-agenda
index 6d24f3c2675b27051c53556f3ec1f4fe8e0471d3..2b2de20c2ecbe6b7a5a56eb30c8ccb942eba434c 160000 (submodule)
--- a/lib/mezzanine-agenda
+++ b/lib/mezzanine-agenda
@@ -1 +1 @@
-Subproject commit 6d24f3c2675b27051c53556f3ec1f4fe8e0471d3
+Subproject commit 2b2de20c2ecbe6b7a5a56eb30c8ccb942eba434c