deferred Directory Reference

Files
file	CdnCacheUpdateTest.php [code]
file	DeferredUpdatesTest.php [code]
file	LinksUpdateTest.php [code]
file	MWCallableUpdateTest.php [code]
file	SearchUpdateTest.php [code]
file	SiteStatsUpdateTest.php [code]
file	TransactionRoundDefiningUpdateTest.php [code]