Update etherpad-lite

diff --git a/etherpad-lite b/etherpad-lite
index 78314805de2847d57780da3564cf1399cb9fd45e..3aa14c96bbdcaa63d246832a84eb552fcba0c2c4 160000 (submodule)
--- a/etherpad-lite
+++ b/etherpad-lite
@@ -1 +1 @@
-Subproject commit 78314805de2847d57780da3564cf1399cb9fd45e
+Subproject commit 3aa14c96bbdcaa63d246832a84eb552fcba0c2c4