Merge branch '1529-request-buttons' into 'master'

Ensure that conversation request buttons always work

Closes #1529

See merge request briar/briar!1070

briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationRequestViewHolder.java

@@ -53,6 +53,10 @@ class ConversationRequestViewHolder extends ConversationNoticeViewHolder {
 				listener.respondToRequest(request, false);
 			});
 		}
+		// enable buttons, because the disabled buttons from the click listener
+		// might get recycled and thus not work
+		acceptButton.setEnabled(true);
+		declineButton.setEnabled(true);
 	}
 
 }