Refs #3929 Forum; fix bug in migration code

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@21155 a0171fae-0946-0410-966d-b1775066cd26
Refs #3929 Forum; added script to fix blobs

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@21156 a0171fae-0946-0410-966d-b1775066cd26