fixing the crypto factory beans

[Tom Zeller]

> As an aside, why is all the custom Spring helper code in idp-core instead
> of spring-extensions? I would think we'd want to move it there, it doesn't
> depend on any IdP code. I figure anything that doesn't important anything
> else from net.shibboleth.idp.* but its own package clases shouldn't be in
> the IdP.

It was just already there.

As I think we talked about before, I feel like we should probably
break idp-core into more modules like idp-log and idp-service, not
sure what exactly the idea was behind idp-core.

> Any objections if I move them? It's a large refactor because a lot of the
> custom parsers use SpringSupport, but it's not a hard refactor.

Not from me.