Script: Added Unicode support

The script file can now be UTF8 encoded. There are some limitations with UTF8 data and the Lua string library, check: http://lua-users.org/lists/lua-l/2012-02/msg00241.html

Library/lua/LuaScript.h

@@ -24,7 +24,7 @@
 class LuaScript
 {
 public:
-	LuaScript(const char* file);
+	LuaScript(const WCHAR* scriptFile);
 	~LuaScript();
 	
 	bool IsInitialized() { return m_Initialized; }