ZKP special call minutes

We had a productive topic call on ZKPs in VCs, with the conclusion that
several people (Manu, DaveL, Brent, Ken, Mike were named) will work
together to create a detailed proposal to present on our 4 December call.

Minutes for the special topic call are at
https://www.w3.org/2018/11/26-vcwg-minutes.html .

Note that Ken will be sending pointers to the 2 documents he presented.

-- dan