Cannot find module './sketch/Sketch'
When building my component using browserify it fails to resolve the `sketch/Sketch` module. 

The problem seems to be this lowercase path:

``` js
var Sketch = require('./sketch/Sketch');
```

https://github.com/casesandberg/react-color/blob/master/src/components/Color.jsx#L10

in `src/components` there are two sketch folders. One lowercase and the other one is uppercase. In `lib/components` there is only the uppercase folder.

Changing the require statement from above to uppercase...

``` js
var Sketch = require('./Sketch/Sketch');
```

... fixes the problem.
