Support GitHub Enterprise Server deployments
Support YAML teams configuration (in addition to JSON)
Switch the default configuration file location from .github/teams.json to
.github/teams.yml
Fix version tags in README to clear up documentation on GitHub Marketplace
Support team_sync_ignored property to ignore a team during the sync
Support adding a prefix to the associated GitHub Teams
Support changing a team name in ways that avoid changing the slug
Support setting the GitHub Team's description
Initial version