fwr: when indexing category_entry, reset the categoryEntry privacyContexts

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/trunk/core@95114 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
fwr: when updating category's privacy_contexts, reindex all category's category_entries.

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/trunk/core@95116 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
adding empty directories
adding empty directories