Merge "misc updates to tools information in setup and test docs" into mnc-mr-docs

  </li>

</ol>

<p>You should now have <strong>Android SDK Built-Tools 24.0 0 rc1</strong>,

<strong>Platform-Tools 24.0.0 rc1</strong>, and <strong>SDK Tools

25.0.9</strong>. If you do not update the SDK Tools to 25.0.9, then you won't

be able to run the x86_64 system images for Android N.</p>

<p>Now create a virtual device with the Android N system image:</p>

<p>You can now launch the Android Emulator with the Android N Preview AVD.</p>

<p class="note"><strong>Note:</strong>

<p>

For the best experience in the Android Emulator, install

Android Studio 2.1 Preview, which supports the <a

href="http://tools.android.com/tech-docs/emulator">Android Emulator 2.0 Beta</a>

with much faster performance compared to the Emulator in

Android Studio 1.5.</p>

<p class="note"><strong>Note:</strong>

If you're currently using Android Studio 2.0 Beta, there's a known issue

that prevents you from creating AVDs with the N Preview system images, so

you currently need to use the Android Studio 2.1 preview to create AVDs.</p>

<p>For more information about creating virtual devices, see <a href=

  "{@docRoot}tools/devices/index.html">Managing Virtual Devices</a>.

</p>

<pre>

android {

  compileSdkVersion <strong>'android-N'</strong>

  buildToolsVersion <strong>24.0.0</strong>

  buildToolsVersion <strong>24.0.0 rc1</strong>

  ...

  defaultConfig {