Multiple Duo Integrations with distinct principal sets

[Cantor, Scott]

> 1) Should
> 
> <util:list id="DuoIntegrationList">
>    <value-ref="SpecialDuo" />
>    <value-ref="DefaultDuo" />
> </util:list>
> 
> be instead

I think I intended <value ref=""/> but I don't know offhand what the correct syntax is, if you have a correct one, just edit it but I put in the space.

> Changing the class in the script definition leads to another
> error, so before I go on (and dig myself into my own hole) I
> would be grateful for clarification on the two items above.

Class name was wrong, I fixed that.

-- Scott