* HG-47: Change regulatory domain for timestamps to RFC 3339
* HG-47: Draft party management interfaces + update related domain types
* HG-47: Isolate any possible party modification in changeset
* HG-47: Make blockage / suspension signaling more straightfowrard
* HG-47: Fix a bit Makefile sanity
* HG-47: Introduce ownership to invoices
* HG-47: Distinguish between shop name and id + autogenerate latter
* HG-47: Simplify ShopUpdate definition
* HG-47: Use refs to a category instead
* HG-47: Separate party definition from data revision + provide GetShop function
* HG-47: Include party events into processing event set
* HG-47: Barely acknowledge party creation rather than reply with initial state
* HG-47: Fuse domain objects into party state as is + fix wording
Test only ability to generate Erlang, Java and Go yet. It'd be good to test
compilation at least but it's not feasible so far as we would need a huge
ass image with all these language environments installed.