BGE C++ API

PyObjectPlus::ProcessReplica() is now called when any of its subclasses are replicated.

This is important because PyObjectPlus::ProcessReplica() NULL's the 'm_proxy' python pointer I added recently.
Without this a replicated subclass of PyObjectPlus could have an invalid pointer (crashing the BGE).

This change also means CValue::AddDataToReplica() can be moved into CValue::ProcessReplica() since ProcessReplica is always called.

source/gameengine/Expressions/StringValue.cpp

@@ -133,7 +133,7 @@ bool CStringValue::IsEqual(const STR_String & other)
 CValue* CStringValue::GetReplica()
 { 
 	CStringValue* replica = new CStringValue(*this);
-	CValue::AddDataToReplica(replica);
+	replica->ProcessReplica();
 	return replica;
 };