idpv3 first look

[Rod Widdowson]

> >I get a ton of these warnings
> >
> >16:43:38.623 - WARN
> >[net.shibboleth.idp.attribute.filter.spring.BaseFilterParser:139] -
> >Element 'PermitValueRule' did not contain an 'id' attribute.  Generated
> >id
>
>'/AttributeFilterPolicyGroup:CoreFilterPolicy/PermitValueRule:_5ba4f3ad3b3
> >8862fabf2c3a34489a7ec' will be used
> >
> >
> >Nobody ever complained before.  I agree that the elements don't have ids,
> >but, if your going to use a default, the WARN seems excessive.
> 
> If they stay WARN it will be because we decide to formally deprecate not
> including an ID, and then it would be appropriate. If we don't deprecated
> that, we'll turn down the level.

Yea, info sounds better.  One of the reasons why I added that line was that
further logging will use the name to disambiguate the error and the "line
noise" name won't help as much