…, current_github, current_git, current_examples, current_docker and current (0.6)

CHANGES:

Core:

- Implement labelling of clusters on the Graphviz diagram
  (@ewanmellor ocurrent/ocurrent#255)

- Abort propagation on constant/equal changes (@art-w ocurrent/ocurrent#318)

API:

- GitHub: Record build status using CheckRun (@tmcgilchrist ocurrent/ocurrent#279)

- GitHub: Add details_url to check_run. (@tmcgilchrist ocurrent/ocurrent#282)

- GitHub: Add Current_github.Api.cmdliner_opt to allow writing
  pipelines which can optionally be run as GitHub apps. (@talex5 ocurrent/ocurrent#281)

- GitHub: Provide markdown details for CheckRun. (@tmcgilchrist ocurrent/ocurrent#288)

- GitHub: Fix wrong name used for repository (@tmcgilchrist ocurrent/ocurrent#289 ocurrent/ocurrent#290)

- GitHub: Support Github rebuild via webooks. (@tmcgilchrist ocurrent/ocurrent#283)

- GitHub: monitor GraphQL queries (@art-w ocurrent/ocurrent#298)

- GitHub: Limit CheckRunStatus summary and text fields to 65535.
  (@tmcgilchrist ocurrent/ocurrent#300)

- GitHub: Log extra context for Webhook validation failure.
  (@tmcgilchrist ocurrent/ocurrent#302)

- GitLab: Initial GitLab plugin work. (@tmcgilchrist ocurrent/ocurrent#299)

- Git: Make git reset less verbose (@kit-ty-kate ocurrent/ocurrent#293)

Web UI:

- Use Lwt.pause instead of Lwt_unix.yield (@MisterDA ocurrent/ocurrent#297)

- Use `ansi` instead of `current_ansi` (@samoht ocurrent/ocurrent#321)

- Show line numbers and allow jumping to specific lines in job
  logs (@punchagan ocurrent/ocurrent#309)

Docker:

- Explicitly set confirmation levels to allow for
  manually triggered jobs. (@tmcgilchrist ocurrent/ocurrent#304)

- Stop using `Dockerfile.t` completely and use strings instead.
  (@MisterDA ocurrent/ocurrent#301 ocurrent/ocurrent#316)

Other:

- Update to cohttp 4.0.0 (ocurrent/ocurrent#274, @talex5)

- Move `Current_incr` to its own repository (ocurrent/ocurrent#284, @talex5)