Merge "docs: Release Notes: Android Platform 4.1.2 (16, r3)" into jb-dev-docs

<p>To develop an Android app, you must install at least one Android platform from the SDK Manager

against which you can compile your app. Often, any given version of the Android will be revised

with bug fixes or other changes, as denoted by the "revision" number. Below, you'll find the

with bug fixes or other changes, as denoted by the revision number. Below, you'll find the

release notes for each version of the platform and the subsequent revisions to the platform

version.</p>

<p>To determine what revision of an Android platform you

have installed, refer to the "Installed Packages" listing in the Android SDK Manager.</p>

<p>To determine what revision of an Android platform you have installed, refer to the

<strong>Installed Packages</strong> listing in the Android SDK Manager.</p>

SDK tools to revision 20 or later and restart the Android SDK Manager. If you do not,

the Android 4.1 system components will not be available for download.</p>

<div class="toggle-content opened">

  <p><a href="#" onclick="return toggleContent(this)">

    <img src="{@docRoot}assets/images/triangle-opened.png"

class="toggle-content-img" alt="" />Revision 3</a> <em>(October 2012)</em>

  </p>

  <div class="toggle-content-toggleme">

    <p>Maintenance update. The system version is 4.1.2.</p>

    <dl>

      <dt>Dependencies:</dt>

      <dd>SDK Tools r20 or higher is required.</dd>

    </dl>

  </div>

</div>

<div class="toggle-content closed">

  <p><a href="#" onclick="return toggleContent(this)">

    <img src="{@docRoot}assets/images/triangle-closed.png"

class="toggle-content-img" alt="" />Revision 2</a> <em>(July 2012)</em>

  </p>