Ethan Donowitz

[JIRA](https://mozilla-hub.atlassian.net/browse/CONSVC-1664)

[Jira](https://mozilla-hub.atlassian.net/browse/SYNC-3344)

[JIRA](https://mozilla-hub.atlassian.net/browse/CONSVC-1425)

FWIW, I think we can avoid having to change the `SYNC_` prefix to `SYNC__` if we use [`Environment::prefix_separator()`](https://docs.rs/config/latest/config/struct.Environment.html#method.prefix_separator) ([relevant PR](https://github.com/mehcode/config-rs/pull/292)), so this may not depend on upgrading the config crate

I plan to make substantial updates to the README in a future ticket to reflect the new crate structure and naming scheme.

Waiting to merge this until after 0.12 is tagged

@jrconlin Oh, did I accidentally add a change that references the vendored `mozilla-rust-sdk`? It looks like the current version of the README references it, and I agree that we should...

(had to rebase)

@jrconlin Good call! I've updated the doc comment on Tokenserver's `Settings` struct. Also, I've added a few new tickets to make updates to syncstorage-rs's documentation: * https://mozilla-hub.atlassian.net/browse/CONSVC-1425 (turn on the...

Sorry for the noise, had to rebase -- I'll merge this right away after it's re-approved