Test "GeneralDriverTest::testLinks" don't pass on Firefox 23

When running https://github.com/Behat/MinkSeleniumDriver tests on Firefox 23, then `GeneralDriverTest::testLinks` test don't pass becase of `getAttribute('href')` call returns `basic_form.php` instead of `http://test.mink.dev/basic_form.php`. Same for `links\.php?quoted` link.

Original test was created in: https://github.com/Behat/Mink/pull/255.