Update Sizzle: adds caching to combinators

diff --git a/src/sizzle b/src/sizzle
index 299e076fc847109d7b4cd49bd30145ceb534f23a..1b3f3d1444206362f4b49c348a686e546d4f0dbd 160000 (submodule)
--- a/src/sizzle
+++ b/src/sizzle
@@ -1 +1 @@
-Subproject commit 299e076fc847109d7b4cd49bd30145ceb534f23a
+Subproject commit 1b3f3d1444206362f4b49c348a686e546d4f0dbd