dillon1000/react

Don't let new keys on `style` from `transferPropsTo` override old ones

Previous behavior: `transferPropsTo(<div style={{color: 'red'}} />)` would get `color` overriden if we transfer in a `style={{color: 'blue'}}`. This is inconsistent with how other props are transfered.

This simply reverses the order of arguments.

closes #1435