Update .babelrc for preset-env for test
Update .babelrc for preset-env for test

Preset env was changed for for dev/prod but not for unit test
twcapps/vue-typescript-boilerplate,jveljan/webpack,vuejs-templates/webpack,twcapps/vue-typescript-boilerplate,Toilal/vue-webpack-template,vuejs-templates/webpack,neonblack-at/webpack,bbrietzke/webpack,pronebel/webpack,pronebel/webpack,pronebel/webpack,twcapps/vue-typescript-boilerplate,vuejs-templates/webpack,Toilal/vue-webpack-template,jveljan/webpack,jveljan/webpack,Brandon-Stoyles/webpack,twcapps/vue-typescript-boilerplate,Toilal/vue-webpack-template,Brandon-Stoyles/webpack,neonblack-at/webpack,bbrietzke/webpack,Brandon-Stoyles/webpack,neonblack-at/webpack,Toilal/vue-webpack-template,bbrietzke/webpack