Allow ocaml-community to run OCaml CI jobs

[Leonidas-from-XIV]

https://github.com/ocaml-community maintains a number of important packages and some of them have Travis set up which is plain broken. Migrating to OCaml CI makes a lot of sense for them.

[tmcgilchrist]

Someone from @ocaml-community will need to approve the GH app before their builds will appear in https://ci.ocamllabs.io/github @Leonidas-from-XIV

[Leonidas-from-XIV]

@tmcgilchrist Yes, Drup set this up but unfortunately it doesn't seem to pick it up: ocaml-community/yojson#108 Maybe something similar to #367 is necessary here?

[tmcgilchrist]

@Leonidas-from-XIV The change is deployed, the issue is @ocaml-community has selected all the repos which we don't currently support (#392). If they can select specific projects to build then they should be picked up.

FYI from the logs
Installation "ocaml-community" has selected all repositories - skipping as probably a mistake

[Leonidas-from-XIV]

Thanks for looking into this again. Unfortunately I don't have admin access to the organization myself so I can't set things up myself but I'll reach out to people who do.