Enter to next.

In the about section of the ringer info activity, the keyboard now
displays "next" instead of enter while editing the ringer's name

closes #77

Signed-off-by: Ricky Barrette <rickbarrette@gmail.com>

LocationRinger/res/layout/ringer_about_fragment.xml

@@ -24,7 +24,9 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         class="com.TwentyCodes.android.LocationRinger.ui.fragments.AboutRingerFragment$ListeningEditText"
-        android:capitalize="words" />
+        android:capitalize="words"
+        android:imeOptions="actionNext"
+        android:singleLine="true" />
 
     <TextView
         android:layout_width="match_parent"