alternative route algo should consider timeout too

Author: karussell

core/src/main/java/com/graphhopper/routing/AlternativeRoute.java

@@ -132,6 +132,8 @@ public List<AlternativeInfo> calcAlternatives(int from, int to) {
 
     @Override
     public List<Path> calcPaths(int from, int to) {
+        checkAlreadyRun();
+        setupFinishTime();
         List<AlternativeInfo> alternatives = calcAlternatives(from, to);
         List<Path> paths = new ArrayList<>(alternatives.size());
         for (AlternativeInfo a : alternatives) {