Bug: Tabs Component Required More Than 1 Tab

[jwdotjs]

If you create a Tabs component and put only one tab inside it, it will through an invariant:

invariant.js:38 Uncaught Invariant Violation: Objects are not valid as a React child (found: object with keys {title, children}). If you meant to render a collection of children, use an array instead or wrap the object using createFragment(object) from the React add-ons. Check the render method of `Tabs`.

Reproducable Sample Code

<Tabs align='top'>
          <Tab title='All'>
             hi
          </Tab>
</Tabs>

We should handle this one of two ways:

1. Update the tabs component to allow 1 or many tabs
2. Throw an error if we have less than 2 tabs, saying that 2 or more tabs are required.

I think option 1 would be better if possible, there may be situations where tabs are dynamically generated and the user may only have one.

[afogarty72]