Create empty view for RecyclerViewFragment

app/src/main/java/com/philliphsu/clock2/timers/TimersFragment.java

@@ -102,6 +102,11 @@ public class TimersFragment extends RecyclerViewFragment<
         }
     }
 
+    @Override
+    protected int emptyMessage() {
+        return R.string.empty_timers_container;
+    }
+
     @Override
     public Loader<TimerCursor> onCreateLoader(int id, Bundle args) {
         return new TimersListCursorLoader(getActivity());