per run time environment idp.properties

[Tom Zeller]

> But we are not always going to be that lucky, so I am wondering whether
> anybody has had any thoughts on how we might configure per test (or per
> environment) versions of idp.properties.

By setting the 'idp.home' property which defines the location of idp.properties IIRC ? But we probably  just want to override specific properties per test or env.