Skeleton of a contacts API server.
Skeleton for riak contacts collection and backend.
Add owner_id to get_contact_collection.
Add self to methods.
Basic tests for riak collection.
Add go_api as a dependency.
Add stubby test for getting a contact.
Add vumi-go as a requirement (this one is a duzi).
Add riak as a required service.
Simple riak test for missing contact.
Add test for retrieving a contact.
Apt install protobuf-compiler so riak-pb can install from source.
Replace manager set up with persistence helper.
Use async riak (doh).
Only catch ContactNotFoundErrors -- allow other contact errors to be handled by the request handler.
Cleared explanation of the dev packages installed by requirements.txt.
Change the rest of the tests to use async Riak managers (also doh).
Merge branch 'feature/issue-1-contact-retrieval' into develop