Support for an audio view to allow in-app playback of audio.

Closes #4270
// FREEBIE

src/org/thoughtcrime/securesms/ConversationUpdateItem.java

@@ -56,7 +56,7 @@ public class ConversationUpdateItem extends LinearLayout
                    @NonNull MessageRecord messageRecord,
                    @NonNull Locale locale,
                    @NonNull Set<MessageRecord> batchSelected,
-                   boolean groupThread)
+                   @NonNull Recipients conversationRecipients)
   {
     bind(messageRecord, locale);
   }