TicketAuth has option to provide authextra, which is not implemented

[andzejsw]

I want to send authextra during TicketAuth which is also defined for this auth scenario, but when looking deeper it is visible that it is not implemented and server instead receives null value.
This is how class constructor looks:

And this is how it is implemented in "reallyJoin" method within Session.java class:

As we can see, authextra always stays null.

[andzejsw]

Missing line: authextra = auth.authextra;

[om26er]

@andzejsw I guess this would be a good first contribution. Can you do a PR to fix that?

[andzejsw]

@om26er Yes. Now I made it.