Note that project ID can also be a string

[connorshea]

You can pass the project name as a string rather than the ID as an integer to access a project via the API, e.g. https://gitlab.com/api/v3/projects/gitlab-org%2Fgitlab-ce/issues?private_token=PRIVATE_TOKEN. This makes everything a lot easier to work with, also note the slash must be encoded for this to work.

A lot of the gem's docs have to be updated with this.

See also https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6102 and https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6133.