Update detection to work with React v0.15.0

[kentcdodds]

Because of this

[mayankchd]

we can check for both [data-reactid] and [data-reactroot] and if anyone of them is present we can outline the components.

[kentcdodds]

I think we can use that to detect whether react is on the page, but with v0.15.0 there doesn't appear to be any way to identify an individual component from the DOM. So we wont be able to outline components in v0.15.0 :-(

[mayankchd]

Yup! But it does outlines the container component . I tried , it's good enough until we find something else.