If .babelrc file does not exist `rails vue:setup` produces an error

The workaround is to create the file, add config, etc.

```
echo {} >> .babelrc
```

Not sure if this is a vueonrails error since the error comes from Thor:
```
Thor::Error: The file /Users/rlafranchi/projects/vue-on-rails-scaffold/.babelrc does not appear to exist....
```
