* Fix unlogged automatic user creation: run wfLBFactory()->shutdown() unconditionally...

* Fix unlogged automatic user creation: run wfLBFactory()->shutdown() unconditionally in api.php. If you want to optimise it, do it in the database backend, since there's no way for the MW core to indicate to the web API that a write query has been performed. The previous code was also wrong in that it didn't commit transactions on foreign connections.
* Fixed debugging code left in (mustBePosted disabled).