[Koha] Checkout limit by household

[Mark Alexander]

Excerpts from Katrin's message of 2017-01-23 00:25:38 +0100:
> If you add relationships between the members of one household (guarantor 
> and guarantees), you should be able to see in the staff client what the 
> other members of the household have checked out when you are in the 
> patron account.

Thanks!  I had already realized that my idea of matching addresses was pretty
bogus. The guarantors idea might work for us.