FIX: broken link to selenium server jar file
FIX: broken link to selenium server jar file

Selenium releases have moved, see: https://code.google.com/p/selenium/downloads/list
tractorcow/silverstripe-behat3,silverstripe-labs/silverstripe-behat-extension,silverstripe/silverstripe-behat-extension,silverstripe/silverstripe-behat-extension,chillu/silverstripe-behat-extension,jeffreyguo/SS-Behat-quicksetup,IgorNadj/silverstripe-behat-extension,jeffreyguo/silverstripe-behat-extension,jeffreyguo/SS-Behat-quicksetup