Sizzle: :lang updates for handling backslashes, xml, and inheritance

diff --git a/src/sizzle b/src/sizzle
index cb08a7c7aeb9eedd35c3d287494a91fb103c58fd..229fb525c04537665702961819f96e7e60e96121 160000 (submodule)
--- a/src/sizzle
+++ b/src/sizzle
@@ -1 +1 @@
-Subproject commit cb08a7c7aeb9eedd35c3d287494a91fb103c58fd
+Subproject commit 229fb525c04537665702961819f96e7e60e96121