Upgrade to v2.0.1

Add migrating guide and version bump to v2.0

Version Bump to v1.3.0

Version Bump to v1.2.1

Version bump to v1.2.0

Version Bump to v1.1.0, adjust docs for `Player.clan_previous_rank`

Merge pull request mathsman5133#69 from mathsman5133/patch-1

Version Bump to v1.0.4

Version Bump to v1.0.3

Version Bump to v1.0.2

Version Bump to v1.0.1