request invite subscribers module

[andreask]

Heyho!

Thanks for this great service!

    "
     If you want to invite subscribers, please request
     this feature in the Nabble Support forum.
     We can install this module for you, but the Nabble team
     must approve this request to prevent abuse and spam.
    "

Please install this module for http://tanzwerk.2359443.n4.nabble.com/

Thanks a lot!
Andreas