Re-add PNG file that used to have a pathological (LF) filename

This is a cherry-pick of 4aa27cc3 .
Author: Andrea Pescetti <pescetti@apache.org>
Date:   Sat May 11 11:42:03 2013 +0000

Change-Id: Id91c9d5cd462e73a243d9c5670572a9c2293798e
Reviewed-on: https://gerrit.libreoffice.org/3985Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>