Move selenium-webdriver to all envs in Gemfile (#1411)
Move selenium-webdriver to all envs in Gemfile (#1411)

Fix LoadError: cannot load such file -- selenium-webdriver when bin/start_app is run.
cartothemax/ifme,cartothemax/ifme,cartothemax/ifme,julianguyen/ifme,cartothemax/ifme,julianguyen/ifme,julianguyen/ifme,julianguyen/ifme