heroku/uri — pull request #2 by av-ast (2013-12-22 21:00:38+00:00)
Title: relx compatibility

I tried to use your app within my one with no luck.
Here is the output of `relx`:

```
===> Application metadata file exists but is malformed: /home/vagrant/projects/erlang/erl_proxy/deps/uri/ebin/uri.app
```

I took a quick look at relx sources and found that `modules` option for app config is mandatory.