HipByte/RubyMotion — pull request #133 by mordaroso (2013-09-20 11:56:11+00:00)
Title: Allow to open the simulator with a non-retina iPad in iOS7

With the current implementation the following command always opens a retina iPad simulation:
```bash
rake device_family=ipad
```

With this change it switches back to:
```bash
rake device_family=ipad # non-retina ✝
rake device_family=ipad retina=true # retina
```

✝ *Apparently the Simulator opens with the last used setting when no string is given. Switching to non-retina and running the rake command works*