Paginate GET /repos/:owner/:repo/git/refs
Paginate GET /repos/:owner/:repo/issues/:number/labels
Paginate GET /repos/:owner/:repo/milestones/:id/labels
Paginate GET /orgs/:org/teams
Paginate GET /repos/:owner/:repo/pulls/:number/commits
Paginate GET /repos/:owner/:repo/pulls/:number/files
Paginate GET /repos/:owner/:repo/downloads
Paginate GET /repos/:owner/:repo/labels
Paginate GET /teams/:id/members
Paginate GET /teams/:id/repos
Merge pull request #469 from octokit/always-be-paging

Update paginated endpoints to accept pagination