create setup/database.php to extract table creation for reuse by tests; adds database setup test
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
reorganizes WakkaClassTest; groups Query tests into own section
completes tests for SavePage and pageExists in WakkaClassTest
rewrites tests for SavePage and pageExists in WakkaClassTest
completes test for LogReferrer in WakkaClassTest
finishes reorganizing WakkaClassTest into sections
Merge pull request #1 from klenwell/TJ47ZlSi-add-database-tests

WakkaClass Test Organization and Database Tests