ZF-11137: Zend_Service_Amazon_SimpleDb_OnlineTest needs to wait/sleep more often
Some additional sleeps should be added to avoid errors like:
1)Zend_Service_Amazon_SimpleDb_OnlineTest::testGetAttributes Zend_Service_Amazon_SimpleDb_Exception: Service AmazonSimpleDB is currently unavailable. Please try again later
Related AWS forum thread: https://forums.aws.amazon.com/message.jspa/…
Goals: - Tests runs that are slower but with less false negatives. - Avoid manual clean up cause by unexpected errors. E.g. testListDomains() is sensitive to the total number of test domains. But if cases die before they can clean up the domains they know about, we leave garbage behind for the next run.