WikiaDataAccess: add lock logging
WikiaDataAccess: properly convert microseconds to int
WikiaDataAccess: cacheWithLock profiling
Merge branch 'dev' into wikia-data-access-logs

Conflicts:
	includes/wikia/WikiaDataAccess.class.php
Merge pull request #3260 from Wikia/wikia-data-access-logs

WikiaDataAccess::lock profiling