[Bug-gnubg] Request from checkerplay.com

[Achim Mueller]

Hi folks, 

Christian Liebe-Harkort has created the page www.checkerplay.com for 
collecting positions. Right now people can export positions from 
extremegammon into the page. In a personal e-mail he asked me whether it is 
possible to create an export option similar to the one from extremegammon. 
I guess some people here already use the new program (I don't) so I save 
some space and won't attach an example of the export. 

Ciao 

Achim