Inverted key/value for select options

[ndbroadbent]

In response to #71

[mastilver]

Why not fixing the issue rather that inverting the docs? It's obviously a bug

Also it doesn't fix the issue for Arrays:

select('test', [
  'item1',
  'item2',
  'item3'
], 'item1');

When the expected is:

select('test', [
  'item1',
  'item2',
  'item3'
], 0);

[mthuret]

I think it would be better to add a new line, keeping the simple "number" example.

[mthuret]

@mastilver Can you explain what you've expected? It seems that this doesn't just invert the doc.

I think this syntax is more natural. But this is a breaking change. I think it's ok to go for a major version but WDYT @mnmtanish and @apexskier?

[mastilver]

To me the docs sounds right, That's the way I would want it to work. Especially when you take array in consideration

Cc @lifehackett

[apexskier]

I actually very much like this. When I first used knobs, the original syntax was pretty surprising, but this definitely requires a major version bump.

[ndelangen]

Hey @ndbroadbent

Thank you so much for this PR! We're moving over to a mono-repo, since that makes a lot of sense for a project like this.
We would ❤️ it if you could create a PR here: https://github.com/storybooks/storybook

That'd be awesome, thanks!