Add AI script code to provide a cleaner API around the engine interface.

Handle AIProxy entirely through scripts.
Support structured clones of script values.
Improve performance.
Support multiple script contexts sharing a runtime.
Use a separate context per AI player.

This was SVN commit r8866.

source/scriptinterface/ScriptConversions.cpp

@@ -261,3 +261,9 @@ VECTOR(u32)
 VECTOR(std::string)
 VECTOR(std::wstring)
 VECTOR(CScriptValRooted)
+
+class IComponent;
+template<> jsval ScriptInterface::ToJSVal<std::vector<IComponent*> >(JSContext* cx, const std::vector<IComponent*>& val)
+{
+	return ToJSVal_vector(cx, val);
+}