Merge "More edits to preview docs." into mnc-mr-docs

<p>If your app uses any of these intents, you should remove dependencies

  on them as soon as possible so that you can target Android N devices properly.

  The Android framework provides several solutions to mitigate the need for

  these implicit broadcasts or background services. For example, the {@link

  these implicit broadcasts. For example, the {@link

  android.app.job.JobScheduler} API provides a robust mechanism to schedule

  network operations when specified conditions, such as connection to an

  unmetered network, are met. You can even use {@link

</p>

<p>

  For more information about this behavior change and how to adapt your app,

  For more information about background optimizations in N and how to adapt your app,

  see <a href=

  "{@docRoot}preview/features/background-optimization.html">Background

  Optimizations</a>.