@define decorator for ES6 classes

[gaperton]

mixins, props, context, state, and autobind support

@define({
    mixins : [ A, B ],
    autobind : 'a b c'
})
class My extends React.Component {
    render(){

    }
}

• mixins must chain lifecycle methods, as React.createClass does
• props, state, autobind, listenToProps, listenToState, and context specs must be merged across mixins.

[gaperton]

Implemented in 'develop'