dillon1000/react

Swapping defaultChecked and defaultValue

The current documentation states that the `<select>` tag supports `defaultChecked`, but it actually doesn't. I believe this documentation was meant to be written in the proposed order. 

Non-working fiddle using `defaultChecked`: http://jsfiddle.net/jqs1hsLr/1/
Working fiddle using `defaultValue`: http://jsfiddle.net/nv7z0yzL/1/