I'm worried this might not find the correct path in some cases.  Here's why --

The last point release of Xcode 5.0 shipped with the iOS SDK __7.0.3__ SDK.  `7.0` was a valid description for this SDK... in that you could pass `OS=7.0` and Xcode would resolve that to mean `7.0.3`.

For the 7.0.3 SDK, the actual data path ends up being ...

```
~/Library/Application Support/iPhone Simulator/7.0.3
~/Library/Application Support/iPhone Simulator/7.0.3-64
```

My worry is ... if you're running on Xcode 5.0 and testing with the 7.0 SDK, will `simulatorVersion` be __7.0.3__ as it should be?