Fix iterator issue with NiNode when clearing children and Clearing issue with...

Fix iterator issue with NiNode when clearing children and Clearing issue with NiObjectNET and controllers.

obj/NiNode.cpp

@@ -69,7 +69,7 @@ void NiNode::RemoveChild( Ref<NiAVObject> obj ) {
 }
 
 void NiNode::ClearChildren() {
-	for ( vector< NiAVObjectRef >::iterator it = children.begin(); it != children.end(); ) {
+	for ( vector< NiAVObjectRef >::iterator it = children.begin(); it != children.end(); ++it) {
 		(*it)->SetParent(NULL);
 	}
 	children.clear();

obj/NiObjectNET.cpp

@@ -152,11 +152,11 @@ void NiObjectNET::RemoveController( Ref<NiTimeController> obj ) {
 	}
 }
 void NiObjectNET::ClearControllers() {
-	NiTimeControllerRef cont = controller;
-	while ( cont != NULL ) {
-		cont->SetTarget(NULL);
+	NiTimeControllerRef * cont = &controller;
+	while ( (*cont) != NULL ) {
+	   (*cont)->SetTarget(NULL);
+      (*cont) = (*cont)->GetNextController();
 	}
-	controller = NULL;
 }
 
 list< Ref<NiTimeController> > NiObjectNET::GetControllers() const {