Upped Selenium version to allow tests to work with Firefox 47+
Upped Selenium version to allow tests to work with Firefox 47+

dbe-it/webtester2-core,dbe-it/webtester2-core,testIT-WebTester/webtester2-core,slu-it/webtester2-core,testIT-WebTester/webtester2-core,testIT-WebTester/webtester2-core,slu-it/webtester2-core,slu-it/webtester2-core