Merge pull request ReactiveX#411 from petermd/fix-schedtests

update counter before triggering latch

Author: benjchristensen

rxjava-core/src/test/java/rx/concurrency/TestSchedulers.java

@@ -361,8 +361,8 @@ public void testSchedulingWithDueTime() throws InterruptedException {
             @Override
             public Subscription call(Scheduler scheduler, String state) {
                 System.out.println("doing work");
-                latch.countDown();
                 counter.incrementAndGet();
+                latch.countDown();
                 if (latch.getCount() == 0) {
                     return Subscriptions.empty();
                 } else {