#14360 Contract flattened list values

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20087 a0171fae-0946-0410-966d-b1775066cd26
#14360 Set appropriate content type to the json export

git-svn-id: https://svn.eionet.europa.eu/repositories/Naaya/trunk/eggs@20088 a0171fae-0946-0410-966d-b1775066cd26