Merge pull request #459 from thoughtbox/master

Add summary information to "Sound" setting in preferences.

res/values/strings.xml

@@ -447,6 +447,7 @@
     <string name="preferences__pref_led_blink_dialogtitle">Select LED Blink Pattern</string>
     <string name="preferences__select_led_color">Select LED Color</string>
     <string name="preferences__sound">Sound</string>
+    <string name="preferences__change_notification_sound">Change notification sound</string>
     <string name="preferences__inthread_notifications">In-thread notifications</string>
     <string name="preferences__play_inthread_notifications">Play notification sound when viewing an active conversation.</string>
     <string name="preferences__vibrate">Vibrate</string>

res/xml/preferences.xml

@@ -52,6 +52,7 @@
                             android:dependency="pref_key_enable_notifications"
                             android:key="pref_key_ringtone"
                             android:title="@string/preferences__sound"
+                            android:summary="@string/preferences__change_notification_sound"
                             android:ringtoneType="notification"
                             android:defaultValue="content://settings/system/notification_sound" />