title: marginTop and marginBottom don't work for LinearLayout
body: <p>Main(container) LinearLayout:</p>
  
  <pre><code>&lt;LinearLayout
      android:id="@+id/LinearHome"
      android:orientation="vertical"
      android:layout_width="match_parent"
      android:layout_height="match_parent" &gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>Child LinearLayouts (I'm adding them dynamically by inflating new one):</p>
  
  <pre><code>&lt;LinearLayout 
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:background="@drawable/lnote"
      android:layout_marginTop="10dp"
      android:layout_marginBottom="10dp" /&gt;
  </code></pre>
  
  <p>What's the problem?</p>