Update Sizzle: performance testing and changes for optimization. Adds back matchesSel...

diff --git a/src/sizzle b/src/sizzle
index 321dcd0be3d499e1a5e8002be982ceac6ebf03c0..c53fb710040ba25c000f7daed0628683961f08db 160000 (submodule)
--- a/src/sizzle
+++ b/src/sizzle
@@ -1 +1 @@
-Subproject commit 321dcd0be3d499e1a5e8002be982ceac6ebf03c0
+Subproject commit c53fb710040ba25c000f7daed0628683961f08db