include latest#2

Merged

clockworkcoding merged 4 commits intoclockworkcoding:masterfrom

Inumedia:master

Mar 16, 2019

Commits on Feb 23, 2019

Updated AccessTokenResponse to include the BotTokenResponse and team_id
clockworkcoding
committed

Commits on Mar 12, 2019

Fixes timestamp serialization issue (#170)
Sergey Nechaev
committed

Commits on Mar 14, 2019