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

Age	Commit message (Expand)	Author
2019-09-14	channel.authenticate() - Deprecated argument 'create_user'	Philip Paquette
2019-08-14	[Web] Integrated new maps on the web interface	notoraptor
2019-07-17	[web] Make button "Delete all" remove only orders from current se… (#49)	notoraptor