stefanpenner/ember-cli — pull request #927 by rjackson (2014-06-06 10:59:04+00:00)
Title: Do not allow periods in a project name.

This causes issues with the way we export information to `window` in `app/index.html`. For example (assuming a project name of `zomg.awesome`):

```javascript window.Zomg.Awesome =
require('some-test/app')['default'].create(ENV.APP);
```

Which will obviously blow up because `Zomg` is not an object.