prepare backport of category report download change.
matching code in release 1.0.8.
applied the intended mods for catalogue report download.
restoring 'disappeared' file
Use a separator param when generating reports

Defaults to comma, but 'catalogue' report is tab separated.
Merge pull request #444 from nla/cr-upd

Catalogue Report update backport changes.
update pom version.
merged latest changes.