Cuyahoga 0.7.0.1 bugfix release

As some of you might have noticed, the 0.7.0 release had a bug that prevented new users from creating an account. This was also the case on this very site. From now you can register again.
The bug was a side effect from a fix in NHibernate 0.7 where a Date below 1-1-1753 isn't considered null anymore. Thanks to Mike Savage for pointing out. Next time I'm going to really read the NHibernate release notes :).

The fixed sources can be found at the usual place. Besides the above issue, there is also a fix in the PostgreSQL database create script..