Made LuaDocument's LoadScript function signature the same as ElementDocument's like it should have been.

Source/Core/Lua/LuaDocument.cpp

@@ -12,7 +12,7 @@ LuaDocument::LuaDocument(const String& tag) : ElementDocument(tag)
 {
 }
 
-void LuaDocument::LoadScript(Stream& stream, const String& source_name)
+void LuaDocument::LoadScript(Stream* stream, const String& source_name)
 {
     //if it is loaded from a file
     if(source_name != "")

Source/Core/Lua/LuaDocument.h

@@ -12,7 +12,7 @@ class LuaDocument : public ElementDocument
 {
 public:
     LuaDocument(const String& tag);
-    virtual void LoadScript(Stream& stream, const String& source_name);
+    virtual void LoadScript(Stream* stream, const String& source_name);
 };
 
 }