added tesst for Tokenizer and Search to get them under full coverage. relatex refactorings and coverage reports

added tests to get complete coverage of Transaction, RawSQL, AuditLog and Query/Having. Related refactorings. Added some getters to be able to test. Also added coverage report for these changes

refetch state after preSave listener in unit of work. if state changes in preSave listener it is not taken into concideration when an object is saved/deleted etc. also fixed some small stuff in tests and added new coverage report

refactored test harness and moved logic away from the run.php file. fixed coverage reporting so that it now generates a full html coverage files. look in tests/coverage/index.php in a browser for details