title: Logo are not displayed in Actionbar, using AppCompat
body: <p>I don't know where I missed something, but I can't set my logo in my actionbar. 
  My AndroidManifest.xml:</p>
  
  <pre><code>&lt;application 
      android:icon="@drawable/application_icon" 
      android:label="@string/icon_name"
      android:logo="@drawable/actionbar_logo"
      android:theme="@style/PolarTheme"&gt;
  </code></pre>
  
  <p>And also I set my logo in my activity tag in the manifest:</p>
  
  <pre><code>&lt;activity 
      android:name=".Main"
      android:theme="@style/PolarThemeLogo"
      android:logo="@drawable/actionbar_logo"
      android:windowSoftInputMode="adjustPan"&gt;
  &lt;/activity&gt;
  </code></pre>
  
  <p>This is in my themes.xml:</p>
  
  <pre><code>&lt;style 
      name="PolarThemeLogo" parent="Theme.AppCompat.Light.DarkActionBar"&gt;  
      &lt;item name="colorPrimary"&gt;@color/mainColor500&lt;/item&gt;
      &lt;item name="colorPrimaryDark"&gt;@color/mainColor700&lt;/item&gt;
      &lt;item name="colorAccent"&gt;@color/accentColorA200&lt;/item&gt;
  
      &lt;item name="actionBarStyle"&gt;@style/MyActionBarLogo&lt;/item&gt;
      &lt;item name="android:windowContentOverlay"&gt;@null&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p>My styles.xml:</p>
  
  <pre><code>&lt;style name="MyActionBarLogo" parent="@style/Widget.AppCompat.Light.ActionBar.Solid.Inverse"&gt;
      &lt;item name="background"&gt;@color/mainColor500&lt;/item&gt;
      &lt;item name="displayOptions"&gt;useLogo&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p>In my Main.java:</p>
  
  <pre><code>public class Main extends ActionBarActivity {
  
  @SuppressLint("NewApi")
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);    
      ActionBar actionBar = getSupportActionBar();
      actionBar.setTitle("");
      actionBar.setDisplayUseLogoEnabled(true);
  </code></pre>
  
  <p>Any ideas? </p>
  
  <p><strong>UPDATE - SOLVED</strong></p>
  
  <p>I removed all the <code>android:logo</code> attributes from my AndroidManifest.xml and I modified my MyActionBarLogo style like this:</p>
  
  <pre><code>&lt;style name="MyActionBarLogo" parent="@style/Widget.AppCompat.Light.ActionBar"&gt;
      &lt;item name="background"&gt;@color/mainColor500&lt;/item&gt;
      &lt;item name="logo"&gt;@drawable/actionbar_logo&lt;/item&gt;
      &lt;item name="displayOptions"&gt;useLogo|showHome&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p>Now the actionbar is displaying my logo. :)</p>