Config class

Haven't tested it, but should work fairly well, and documented. If you add files like:

``` php
<?php

array(
	'foo' => 'something',
	'bar' => 'goes here',
)
```

In `master/config/example.php`, you should be able to get them with this class by calling `$config->get('example.foo')`. In this case, that will return "something".