Increased test delays.

Author: jmhofer

extensions/rxjava-swing/src/main/java/rx/concurrency/SwingScheduler.java

@@ -194,8 +194,8 @@ public Subscription call() {
                 }
             };
 
-            Subscription sub = scheduler.schedulePeriodically(action, 20, 100, TimeUnit.MILLISECONDS);
-            Thread.sleep(400);
+            Subscription sub = scheduler.schedulePeriodically(action, 50, 200, TimeUnit.MILLISECONDS);
+            Thread.sleep(840);
             sub.unsubscribe();
             waitForEmptyEventQueue();
             verify(innerAction, times(4)).call();