Doc change: add notice for iab v3 subscriptions launch.

item; only one copy can be owned at any point in time</li>

<li>Purchased items can be consumed. When consumed, the item reverts to the 

"unowned" state and can be purchased again from Google Play</li>

<li>Provides support for subscriptions</li>

<li>Provides support for <a

  href="{@docRoot}google/play/billing/billing_subscriptions.html">subscriptions</a></li>

</ul>

<p>For details about other versions of In-app Billing, see the 

<a href="{@docRoot}google/play/billing/versions.html">Version Notes</a>.</p>

parent.link=index.html

@jd:body

<div id="qv-wrapper">

<!--notice block -->

    <div style="background-color:#fffbd9;width:100%;margin-bottom:1em;padding:8px 8px 1px;">

      <p><em>15 February 2013</em></p>

      <p>In-app Billing V3 now supports subscriptions and you can get

        started developing today. A small app update is currently being

        rolled out to Android devices. This process is automatic and

        most devices will get the update in the next few days. However,

        if you wish to get the update today to start developing right

        away, simply reboot your device. </p>

      <p>However, we recommend that you <em>do not publish</em> an app with 

        V3 subscriptions until all Android devices have received the update. We'll

        notify you here that all devices have received the update and its safe

        to publish your apps that use V3 subscriptions. </p>

    </div>

<!-- Use non-standard wrapper to support notice block. Restore standard 

     wrapper when notice is removed. -->

<!--<div id="qv-wrapper"> -->

<div id="qv-wrapper" style="margin-top:.25em;">

<div id="qv">

  <h2>Quickview</h2>

  <ul>