Catch base exception instead of ZRay\Exception

Without this, there would still be an exception thrown when the `new \ReflectionClass($controller);` fails.

![screen shot 2014-12-04 at 14 02 04](https://cloud.githubusercontent.com/assets/1918518/5298592/36c4a256-7bbe-11e4-80cf-8de5d2ef0f00.png)