[Mageia-i18n] Transifex join team approval notification

[You-Cheng Hsieh]

Hello,

After I click 'join this team', the coordinator didn't recieve any
forms of notification that someone is awaiting approval. And after he
approved, I don't receive any notification that I'm approved as well.

Some kind of automatic notification would be nice for this procedure,
otherwise I suppose new translators should find a way to tell the
coordinator "Hello, please approve me at transifex" via mailing list,
IRC, or any other means in case the coordinators miss it.

Thanks,

You-Cheng Hsieh