Shouldn't lastpubver just be tied to gateways.json?

[jamiew]

Right now it's wrapping index.html, app.json and gateways.json

The ipfg tool seems to be using that hash to cache version of gateway.json; is that how it's intended to be used? Hash of the latest list of gateways basically? (that makes sense to me)

Could also wire this up to that new GitHub app for automatically publishing

[jamiew]

I'd like to get rid of this; the older ipfg bash script https://github.com/JayBrown/Tools/blob/master/ipfg/ipfg also has a newer golang version that doesn't rely on lastpubver as a cache key: https://github.com/gingerhot/ipfg

I haven't tested it but even the bash ipfg doesn't seem to absolutely expect that file either

[SgtPooki]

closing this as we no longer use lastpubver. see #194 (comment)