Breadcrumbs in the action bar for navigating up one level and showing current title.

Change-Id: I595e06549b888bd67c6dddd599a4cc77416c3a41
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index e93cb2e..b6a422e 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -49,7 +49,7 @@
 
         <activity android:name="Settings" android:label="@string/settings_label"
                 android:taskAffinity="com.android.settings"
-                android:theme="@android:style/Theme.WithActionBar">
+                android:theme="@android:style/Theme.Holo">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <action android:name="android.settings.SETTINGS" />