replaces table-creation sql in install.php with  from new setup/database.php include
adds test for Wikka::Query; corrects issue in setting up database tables for tests: must use require rather than require_once
completes tests for LoadAll and LoadSingle for WakkaClassTest
completes test for getCount in WakkaClassTest
completes test for CheckMySQLVersion in WakkaClassTest
completes tests for GetMicroTime and microTimeDiff in WakkaClassTest