Diplomacy - Update https://github.com/diplomacy/diplomacy

Age	Commit message (Expand)	Author
2019-09-14	Added ReadtheDocs documentation for the public API	Philip Paquette
2019-08-21	[API] Converting '-' to 'R' during retreats phase	Philip Paquette
2019-08-21	[API] Disband order during 'A' phase strips the coast	Philip Paquette
2019-08-10	[API] Fixed issue with multiple convoy orders and support of unit moving via ...	Philip Paquette
2019-08-09	[API] Fixed issue when disbanding a fleet from a coast	Philip Paquette
2019-05-28	[WebDip] - Providing a "convoyPath" for moves using a convoy	Philip Paquette
2019-05-19	Integration with webdiplomacy.net	Philip Paquette