Path containing spaces causes Error 500 when spawning CGI processes

```
Reported by Jitesh here:

https://groups.google.com/d/topic/phpdesktop/KVgphvpMYTw/discussion

The fix was just commited to Mongoose:

https://github.com/valenok/mongoose/commit/d864d7247073cc0b2fdc018b1148d7961a5d9
ada

It still needs testing.
```

Original issue reported on code.google.com by `czarek.t...@gmail.com` on 17 Jul 2013 at 8:31
