Fix tests for cluster

Author: mpv1989

src/test/java/com/arangodb/example/graph/GraphTraversalsInAQLExample.java

@@ -49,7 +49,7 @@ public void queryAllVertices() throws ArangoDBException, InterruptedException, E
 		Collection<String> result = cursor.asListRemaining();
 		assertThat(result.size(), is(10));
 
-		queryString = "FOR v IN 1..3 OUTBOUND 'circles/A' edges RETURN v._key";
+		queryString = "WITH circles FOR v IN 1..3 OUTBOUND 'circles/A' edges RETURN v._key";
 		cursor = db.query(queryString, null, null, String.class).get();
 		result = cursor.asListRemaining();
 		assertThat(result.size(), is(10));

src/test/java/com/arangodb/example/graph/ShortestPathInAQLExample.java

@@ -75,7 +75,7 @@ public void queryShortestPathFromAToD() throws ArangoDBException, InterruptedExc
 		assertThat(collection.size(), is(4));
 		assertThat(collection, hasItems("A", "B", "C", "D"));
 
-		queryString = "FOR v, e IN OUTBOUND SHORTEST_PATH 'circles/A' TO 'circles/D' edges RETURN {'vertex': v._key, 'edge': e._key}";
+		queryString = "WITH circles FOR v, e IN OUTBOUND SHORTEST_PATH 'circles/A' TO 'circles/D' edges RETURN {'vertex': v._key, 'edge': e._key}";
 		cursor = db.query(queryString, null, null, Pair.class).get();
 		assertThat(collection.size(), is(4));
 		assertThat(collection, hasItems("A", "B", "C", "D"));