fwr: support multiple values being passed into notcontains filter

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/trunk/core@94295 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
fwr: support multiple values being passed into notcontains filter

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/trunk/core@94296 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
adding empty directories
adding empty directories