Updates core.

diff --git a/core b/core
index 6c36b90..ebde1ae 160000 (submodule)
--- a/core
+++ b/core
@@ -1 +1 @@
-Subproject commit 6c36b907ae72344efb81730e3b41a0ddc9473cec
+Subproject commit ebde1aef351c87babbc242d8a799073666b3cbe1