#16590 Fixes to zip_import so it works with unicode folder and file names

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs/Naaya@20357 a0171fae-0946-0410-966d-b1775066cd26
Released 3.3.12 new version 3.3.13

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs/Naaya@20358 a0171fae-0946-0410-966d-b1775066cd26