feature request - for easing operations

[eox-cs1]

I know this doesn't fit 100% into the current discussion, but I like to deposit it before it I forget about it. It would be great if manage.py eoxs_id_list gets some possibility to apply a filtering, in order to retrieve only a subset eg. only FAC data or only datasets from '201602'

[constantinius]

I think the best idea would be to use CQL here as well so that you could write something like identifier LIKE "%201602%"