- [changed] Replace last use of `rustc_serialize` with `serde` (#86)
- [changed] Move to Rust 2018 edition (#88)
- [changed] Do not guarantee a fixed MSRV anymore (#99)
- [changed] Bump dependencies, including spaceapi which now uses an enum for
  the `issue_report_channels` see the [spaceapi changelog] for more details
  (#92, #97)
- [changed] Bump redis version. This changes some inner types in the
  `SpaceapiServerError` (#96, #100)
- [added] Add usage and API documentation (#94)
- [changed] Some internal types that were never meant to be
  used outside the crate are now not public anymore (#94)
- [added] Allow to set custom redis pool for custom options (#90)
- [fixed] Panic in `StateFromPeopleNowPresent` (#104)