fix for map zoom on load

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs/Naaya@21174 a0171fae-0946-0410-966d-b1775066cd26
import from zip: handle non-zip file without site error

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs/Naaya@21175 a0171fae-0946-0410-966d-b1775066cd26