docs: created Android Support Library v23.0.1 release notes

<div class="toggle-content opened">

  <p id="rev21"><a href="#" onclick="return toggleContent(this)">

  <p id="rev23-0-1"><a href="#" onclick="return toggleContent(this)">

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

/>Android Support Library, revision 23.0.1</a> <em>(September 2015)</em>

  </p>

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

    <dl>

      <dt>Changes for <a href="features.html#v7-preference">v7</a> and

          <a href="features.html#v14-preference">v14</a> Preference Support library:</dt>

       <dd>

        <ul>

          <li>Added the material design layout and style files.

          (<a href="http://b.android.com/183376">Issue 183376</a>)</li>

         </ul>

       </dd>

      <dt>Changes for <a href="features.html#v7-appcompat">v7 appcompat library:</a></dt>

       <dd>

        <ul>

          <li>Fixed crash issues for the {@link android.app.Fragment} class by limiting the use of

              hardware layers to Android 4.1 (API level 16) and higher.

          (<a href="http://b.android.com/183896">Issue 183896</a>)</li>

          <li>Fixed an issue where hardware buttons did not work when an activity had set the

            {@link android.widget.Toolbar} class to act as the

            {@link android.app.ActionBar} by using the <code>setSupportActionBar()</code> method.

          (<a href="http://b.android.com/183334">Issue 183334</a>)</li>

          <li>Updated the {@link android.support.v7.app.AppCompatDialogFragment} class so it

            no longer throws the {@code Windows feature must be requested before adding content}

            error.

          (<a href="http://b.android.com/183186">Issue 183186</a>)</li>

         </ul>

       </dd>

     <dt>Changes for <a href="features.html#design">Design Support library:</a></dt>

      <dd>

        <ul>

          <li>Fixed the

            {@link android.support.design.widget.AppBarLayout} class so it now draws correctly after

            rotation.

          (<a href="http://b.android.com/183109">Issue 183109</a>)</li>

          <li>Fixed the

            {@link android.support.design.widget.TabLayout} class so it now behaves correctly when a

            user clicks after a swipe.

          (<a href="http://b.android.com/183123">Issue 183123</a>)</li>

         </ul>

       </dd>

     <dt>Changes for <a href="features.html#custom-tabs">Custom Tabs Support library:</a></dt>

      <dd>

        <ul>

          <li>Lowered the

          <a href="{@docRoot}guide/topics/manifest/uses-sdk-element.html"><code>minSdkVersion</code></a>

              value from 16 to 15 for version support.</li>

          <li>Added a way to generate a

            {@link android.support.customtabs.CustomTabsSessionToken} from an intent.</li>

         </ul>

       </dd>

    </dl>

  </div>

</div> <!-- end of collapsible section -->

<div class="toggle-content closed">

  <p id="rev23"><a href="#" onclick="return toggleContent(this)">

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

/>Android Support Library, revision 23</a> <em>(August 2015)</em>

  </p>

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

<div class="toggle-content closed">

  <p id="rev21"><a href="#" onclick="return toggleContent(this)">

  <p id="rev22-2-1"><a href="#" onclick="return toggleContent(this)">

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

/>Android Support Library, revision 22.2.1</a> <em>(July 2015)</em>

  </p>