Not sure if you're interested in german-language puzzle sources

Hi Adam,

I've added a Downloader for the austrian newspaper derStandard.at, which has a wonderfully quirky, punny and weird crossword puzzle (albeit in german).

i'm not sure if you're interested in adding further puzzle sources, or even non-english language ones. If you are, I'd clean this up a bit and integrate it into the options (currently this is only for my personal use and as this is the only puzzle source i actually use, is not user-changeable).

best regards and thanks for this wonderful program
LittleLui