Remove global "using namespace std;" declarations, use "std::" prefixes on all std elements

Fix whitespace changes

src/ActorScroller.cpp

@@ -269,7 +269,7 @@ void ActorScroller::PositionItemsAndDrawPrimitives( bool bDrawPrimitives )
 		iLastItemToDraw = clamp( iLastItemToDraw, 0, m_iNumItems );
 	}
 
-	vector<Actor*> subs;
+	std::vector<Actor*> subs;
 
 	{
 		// Shift m_SubActors so iFirstItemToDraw is at the beginning.