Merge "No back icon in action bar of APN Settings"

                android:label="@string/apn_settings"

                android:uiOptions="none"

                android:configChanges="orientation|keyboardHidden|screenSize"

                android:launchMode="singleTask">

                android:launchMode="singleTask"

                android:parentActivityName="Settings$WirelessSettingsActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <action android:name="android.settings.APN_SETTINGS" />