- fix the schema so the schema is valid json-schema
- the schema doesn't actually validate the *operations* yet
- sort the named backends (needs a double-check that the
list covers all the ones we currently support)
SEE #1441
- These have **not** been fixed for validation, so the schema's themselves
will fail to load. This is a consequence of variations in JSON-Schema
representations through various drafts. Fixing the schemata is
fairly straightforward.
This gives us 19 new tests, all of which fail.
