#18553 Added option to sort categories

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20821 a0171fae-0946-0410-966d-b1775066cd26
released 1.2.19, new version 1.2.20

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20822 a0171fae-0946-0410-966d-b1775066cd26