CompactPicker does not handle changes to hex field
It appears that [Line 22 in CompactFields.js](https://github.com/casesandberg/react-color/blob/14c1dae01540db92807ddea9c6b0702131950b35/src/components/compact/CompactFields.js#L22) should read `hex: data.hex,` instead of `hex: data,`.

PS: new to the project, but this flummoxed me.
