[nanocloud 0.8.x] Zip entries for directories added to generated jars

Directory entries are required for Spring annotation scanner

Contributed by Fedor Bobin <fuudtorrentsru@gmail.com>

git-svn-id: https://gridkit.googlecode.com/svn/grid-lab/branches/vicluster-0.8@3300 4e96dbfe-9890-11de-ac5d-73b9d092dc0a