Minor fixes so that the iterator iterates and doesn't cause an infinate loop...

Minor fixes so that the iterator iterates and doesn't cause an infinate loop when these functions are accessed.

obj/NiObjectNET.cpp

@@ -104,7 +104,7 @@ void NiObjectNET::ShiftExtraData( uint version ) {
 		//In earlier versions, extra data is a singly linked list
 		//Insert at begining of list
 		//Empty the list into the linked list
-		for ( vector< NiExtraDataRef >::iterator it = extraDataList.begin(); it != extraDataList.end(); ) {
+		for ( vector< NiExtraDataRef >::iterator it = extraDataList.begin(); it != extraDataList.end(); ++it) {
 			(*it)->SetNextExtraData( extraData );
 			extraData = (*it);
 		}
@@ -119,7 +119,7 @@ void NiObjectNET::ClearExtraData() {
 
 list< Ref<NiExtraData> > NiObjectNET::GetExtraData() const {
 	list< Ref<NiExtraData> > extras;
-	for ( vector< NiExtraDataRef >::const_iterator it = extraDataList.begin(); it != extraDataList.end(); ) {
+	for ( vector< NiExtraDataRef >::const_iterator it = extraDataList.begin(); it != extraDataList.end(); ++it) {
 		extras.push_back( *it );
 	}