calabash/calabash-ios — pull request #521 by jmoody (2014-09-19 12:12:14+00:00)
Title: Return :preferences if device cannot be detected

When the device target cannot be found, this method was raising an error.

Ex.

```
$ DEVICE_TARGET= be cucumber
> Error is raised in default_uia_strategy
```

Unknown targets (devices or sims) should be detected either before or after this method.