[RouteOpt]更改API，防止抛异常

modules/mogo-module-service/src/main/java/com/mogo/module/service/routeoverlay/MogoRouteOverlayManager.java

@@ -77,7 +77,7 @@ public class MogoRouteOverlayManager implements
             return;
         }
         synchronized (queue) {
-            List<MessagePad.TrajectoryPoint> items = queue.getLast();
+            List<MessagePad.TrajectoryPoint> items = queue.peekLast();
             if (items != null && !items.isEmpty()) {
                 RouteOverlayDrawer.getInstance().drawTrajectoryList(items, location.getBearing());
             }