The aforementioned issue with the `config.js` directory will probably seem odd to most, so if this require fails, it would help if the message can be a little more explicit where it tried to load the config from using `__dirname`

e.g.,

Rather than:

```
$ node /path/to/oae/app.js --config ./bleh.js

module.js:340
    throw err;
          ^
Error: Cannot find module './bleh.js'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at Object.<anonymous> (/Users/branden/Source/oaeproject/Hilary/app.js:39:14)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
```

We should have:

```
node /path/to/oae/app.js --config ./bleh.js

module.js:340
    throw err;
          ^
Error: Cannot find module '/path/to/oae/bleh.js'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at Object.<anonymous> (/Users/branden/Source/oaeproject/Hilary/app.js:39:14)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
```