Implemented RadioButtonPreference

Change-Id: I047b6a95f3001b60e7500f85c25d507e1ca1ad0f
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 459b0c0..1b24a11 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -704,7 +704,7 @@
             <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID"
                 android:resource="@id/application_settings" />
         </activity-alias>
-        
+
         <!-- Provide direct entry into manage apps showing storage usage for apps.
              This is for compatibility with old shortcuts. -->
         <activity-alias android:name=".applications.StorageUse"
@@ -814,7 +814,7 @@
             <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID"
                 android:resource="@id/application_settings" /> -->
         </activity>
-        
+
         <activity android:name="Settings$LocationSettingsActivity"
                 android:label="@string/location_settings_title"
                 android:configChanges="orientation|keyboardHidden|screenSize"