check_selenium with Selenium Server 2.20.0 and Webdriver

Hi everyone,

I just pushed a new version of check_selenium to my github repository.
I generated a testcase with the current version of Selenium IDE, exported it as JUnit 4 (Webdriver) and ran it with my check. All seems to work. Hope this will help some of you to get their checks running.

As the generated testcase look a bit different, I had to strip the possibility to give url and browsertype as parameters.