title: Android Design Library - Floating Action Button Padding/Margin Issues
body: <p>I'm using the new FloatingActionButton from the Google Design Library and I am getting some strange padding/margin problems. This image (with developer layout options on) is from API 22.</p>
  
  <p><img src="https://i.stack.imgur.com/RaYB5.png" alt="enter image description here"></p>
  
  <p>And from API 17.</p>
  
  <p><img src="https://i.stack.imgur.com/LYQDc.png" alt="enter image description here"></p>
  
  <p>This is the XML</p>
  
  <pre><code>&lt;android.support.design.widget.FloatingActionButton
          android:id="@+id/fab"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignParentEnd="true"
          android:layout_gravity="bottom|right"
          android:layout_marginLeft="16dp"
          android:layout_marginRight="20dp"
          android:layout_marginTop="-32dp"
          android:src="@drawable/ic_action_add"
          app:fabSize="normal"
          app:elevation="4dp"
          app:borderWidth="0dp"
          android:layout_below="@+id/header"/&gt;
  </code></pre>
  
  <p>Why is the FAB in API 17 so much larger padding/margin wise?</p>