"Hat" section: Send e-mail to a player if he goes from waitinglist to playerslist

[therob84]

If a player is sitting on the waitinglist and he gets a spot on the playerslist he should be informed via e-mail (best with an email text organisators can adjust before, e.g. "please send us an e-mail to verify your participation" or something like that). Maybe also the organisators should be informed as (B)CC.