Don't use handlebars-source 3
Don't use handlebars-source 3

It throws the following error:

```
ReferenceError: Can't find variable: window
```

maschwenk/ember-rails,emberjs/ember-rails,emberjs/ember-rails,bcavileer/ember-rails,emberjs/ember-rails,bterkuile/ember-rails,bterkuile/ember-rails,ipmobiletech/ember-rails,ipmobiletech/ember-rails,maschwenk/ember-rails,bcavileer/ember-rails,maschwenk/ember-rails,tricknotes/ember-rails,bcavileer/ember-rails,ipmobiletech/ember-rails,bterkuile/ember-rails,tricknotes/ember-rails,tricknotes/ember-rails