Package play/solitaire.el: Original author's e-mail address changed

[Jan Schormann]

Hi,

this is really a very minor detail but I would be very grateful if you
could fix this: My e-mail address as stated in the package's head
commentary hast changed. The new one is
"Jan.Schormann@rechen-gilde.de".

I'm also attaching a patch, in the hope that it will be helpful.

Thanks for the great work and everything,
   Jan Schormann.