Make channelName optionnal in tests only and validators
Make channelName optionnal in tests only and validators

Fix tests channel displayName

Make channelName in createUser optionnal on server side to not break api

Fix auto channelName with createUser in tests

Chocobozzz/PeerTube,Chocobozzz/PeerTube,Chocobozzz/PeerTube,Chocobozzz/PeerTube