Multiple input files to the service (separated from RE: idpv3 first look)

[Rod Widdowson]

> > My presumption is that this has to be what V2 is doing with multiple
files
> > now, but that's the assumption to check.
> 
> I'll check and get back.

Yea, that’s exactly what it does.  Weird, but there you go.

I'll play around with the change I suggested for the filter manager and if
that works I'll do the same for the other Serviceable classes.

/Rod