- Implement the subcommand `remove` for `introducer`.
- Remove the introducer by adding a certification with trust level 1 and
trust depth 0.
- Move `crypt.rs` into `common/` and add a generic authenticaton
function to be used by `introducer add` and `... remove`.
- Create a command to add an introducer (with domains).
- Add a module for escaping regular expressions used in certifications
- Add some helper functions.
- Add functionality to query online sources (Keyservers, etc) for
certificates.
- Use introducers to determine which UserIDs should be fetched from
online soources. Check certifications before importing certifiactes
into the local cert store.
- start docker image for local end-to-end testing.
Malte Meiboom