chore(travis): Corrected BrowserStack access credentials
chore(travis): Corrected BrowserStack access credentials

jan-molak/serenity-js,jan-molak/serenity-js,red6/serenity-js,InvictusMB/serenity-js,InvictusMB/serenity-js,InvictusMB/serenity-js,red6/serenity-js,jan-molak/serenity-js,jan-molak/serenity-js,red6/serenity-js,red6/serenity-js,InvictusMB/serenity-js