Updates hydra: e2f6a55 Updates TODO

diff --git a/hydra b/hydra
index 5f28219deaf99a79401a080c52a60b8c2b06d1e6..e2f6a5519ee72f4dd0a45ce3de90206adf7f5eca 160000 (submodule)
--- a/hydra
+++ b/hydra
@@ -1 +1 @@
-Subproject commit 5f28219deaf99a79401a080c52a60b8c2b06d1e6
+Subproject commit e2f6a5519ee72f4dd0a45ce3de90206adf7f5eca