Add todo
Todos
Cleanup. Making RevisionPresenter more functional.

Was always a bit uneasy about changing data in-memory,
this is easier for follow.
Remove more modification from RevisionPresenter.
Extract BuildPresenter.

RevisionPresenter does two things, name and builds. Most of the
private methods where about the second.

Another nice benefit with extracting this is that the tests can
become much simpler.
Cleanup specs and code for BuildPresenter.
Upgrade non-rails rake task scripts.
Oops. Unbreaking rails rake tasks.
Ci should not run migrations, changed to schema load.