update heise.de.txt

Multi-page Telepolis-articles (www.heise.de/tp/...) are not fetched correctly atm. My addition to the single_page_link makes it work (tested with http://www.heise.de/tp/artikel/42/42579/1.html).
Merge pull request #865 from Marmo/patch-1

update heise.de.txt
Create adme.ru.txt

Siteconfig