Update TOC for 4.3

diff --git a/WowLua.toc b/WowLua.toc
index 0cbc506..c5deb05 100644
--- a/WowLua.toc
+++ b/WowLua.toc
@@ -1,4 +1,4 @@
-## Interface: 40000
+## Interface: 40300
 ## Title: WowLua
 ## Version: @project-version@
 ## Author: Cladhaire