Have the add dialog maintain state across screen rotation

Change-Id: I44d61018e0ed4de32b0a8da3ecba999831987956
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 517d81d..5185f9a 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -467,6 +467,7 @@
                   android:label="@string/user_dict_settings_titlebar"
                   android:theme="@android:style/Theme.Holo.Dialog.NoActionBar"
                   android:windowSoftInputMode="stateVisible"
+                  android:noHistory="true"
                   android:excludeFromRecents="true">
             <intent-filter>
                 <action android:name="com.android.settings.USER_DICTIONARY_INSERT" />