feat(controller): image without development libraries to reduce the size.

```console
deis/controller                 reduce_size         5c6a6671dbb8        38 hours ago        335.6 MB
deis/controller                 latest              4001aac82196        40 hours ago        485.2 MB
```

The idea is to use a script to install all the requirements to run the controller and to remove all the development packages once the process finish. Running this script from the Dockerfile only one layer is created in which is possible to "release" disk space.