patch 0.20.5 - releasing memory allocated

[Philippe PITHON]

Hello !   I would like to improve the performances of FOP   In forum, I see a message “There was a patch afterwards for releasing memory allocated by the table layout to this branch after the release”   I have download the head of the "fop-0_20_2-maintain" branch and build FOP   But, but after many tests, I don’t see a difference in speed or less place memory   I forgot a procedure?