[Mezzanine agenda] update past events

diff --git a/lib/mezzanine-agenda b/lib/mezzanine-agenda
index d94d8e658d32c24121f184857e193b5f5fbd2e78..fc5d200fbb5c8ef1a6058a78c8a80ae34658cfa4 160000 (submodule)
--- a/lib/mezzanine-agenda
+++ b/lib/mezzanine-agenda
@@ -1 +1 @@
-Subproject commit d94d8e658d32c24121f184857e193b5f5fbd2e78
+Subproject commit fc5d200fbb5c8ef1a6058a78c8a80ae34658cfa4