feat: fix tests under postgresql. Wierd issue. Calling self.db.user.lookup('reauth') fails under posttgresql with a cursor closed error. This same call works with anydbm. I tried adding a setup/teardown to open the tracker (self.instance.open('admin') ...etc. But that made the wasgi server fail to shut down for some reason. So I hard coded the id for the reauth user. Also for the postgresql test case, the reauth triggering auditor and user setup weren't done. I tried to reuse the WsgiSetup.setup_class and then add in the few extra things I needed, but it failed. So I copypastaed the code and modified it. Also corrected docstring for one of the test classes.