updated selenium standalone version
updated selenium standalone version

closes #1211
[ci skip]
testingbot/webdriverjs,monolithed/webdriverio,monolithed/webdriverio,sebastiendavid/webdriverio,Pitzcarraldo/webdriverio,Pitzcarraldo/webdriverio,sebastiendavid/webdriverio,testingbot/webdriverjs