Make uncontrolled select not set value on update

[sophiebits]

No description provided.

[zpao]

This is resulting in https://github.com/facebook/react/blob/master/src/dom/components/__tests__/ReactDOMSelect-test.js#L202 failing internally now with jsdom (cc @benjamn)

It's leaving the last option selected, though this doesn't sound like behavior a real browser would have. Previously we would explicitly set node.selected = false all the time, but this diff changes that behavior. That's why we never saw the issue before.

Nothing else for you to do here I don't think. We may have to shim some fixes into jsdom :(

[sophiebits]

I'm not super concerned about the test; we could get rid of it if we wanted to.

[zpao]

REview from @yungsters:

Instead, would this be easier to follow?

updateOptions(this, this.getValue());

[zpao]

Let's make that change (which gets rid of a boolean param, yay), and rebase. @benjamn is patching jsdom to make the test work internally.

[sophiebits]

Done.