Shibboleth IdP configuration syntax for boolean values

[Cantor, Scott]

There is no single "IdP configuration syntax", there's Spring, our custom XML schemas, and a lot of case by case Spring expressions, properties, and all sorts of conversion ambiguity in between.

Boolean.valueOf() alone does very weird stuff (like treating anything that's not literally "true" as false).

I'd use "true" or "false" exactly or expect problems.

-- Scott