Sizzle: assume window.document in Sizzle.matches; massively reduce calls to setDocume...

diff --git a/src/sizzle b/src/sizzle
index 34fcac60c3c7a181bfe44239c4398db141834882..4dc38ca9d55e19c6f04590563357a58886b3a4dc 160000 (submodule)
--- a/src/sizzle
+++ b/src/sizzle
@@ -1 +1 @@
-Subproject commit 34fcac60c3c7a181bfe44239c4398db141834882
+Subproject commit 4dc38ca9d55e19c6f04590563357a58886b3a4dc