Vervis/migrations/2019_03_19.model

LocalMessage
    author  PersonId
    rest    MessageId

    UniqueLocalMessage rest

RemoteMessage
    author  RemoteSharerId
    ident   Text
    rest    MessageId

    UniqueRemoteMessage rest
In ticket comment tree, support mixing local and remote (federated) comments 2019-03-20 09:07:37 +01:00			`LocalMessage`
			`author PersonId`
			`rest MessageId`

			`UniqueLocalMessage rest`

			`RemoteMessage`
			`author RemoteSharerId`
Add ID URI field to RemoteMessage 2019-03-20 14:12:22 +01:00			`ident Text`
In ticket comment tree, support mixing local and remote (federated) comments 2019-03-20 09:07:37 +01:00			`rest MessageId`

			`UniqueRemoteMessage rest`