groupon-testium/testium — pull request #115 by jeloou (2014-11-26 05:29:43+00:00)
Title: Added error callback to spawn in spawnServer

Hey guys,

I got this error recently when running some tests:
```
Error: spawn ENOENT
at errnoException (child_process.js:1001:11)
at Process.ChildProcess._handle.onexit (child_process.js:792:34)
```
It took me awhile to realize I didn't have `java` installed in my new dev machine. I thought I'd be cool to catch the `spawn` errors and give more details when a `no such file or directory` error is thrown.

(I also removed an unnecessary `require`)