go-ricochet upstream is in the midst of a massive API rewrite, moving
towards something that is more flexible and robust. It's a work in
progress, but already better than what we were on before.
This updates the vendored go-ricochet to a fork off of the latest
master, including a series of patches that were needed to fix or add
behavior needed by ricochet-go. All of these are submitted upstream, and
the goal is to point back there as soon as possible.
Current upstream is https://github.com/special/go-ricochet-protocol on
the api-rework-fixes branch.
The go-ricochet/vendor folder was manually deleted during the import,
because it vendors only dependencies that are also vendored by this
repository.