Create Corpus and Import Documents: match domain #1142

Describe the bug
Create Corpus and Import Documents have different domains. This precludes (easy) use of Create Corpus together with Import Documents.

To Reproduce
Observe a domain from Create Corpus and Import Documents.

Expected behavior
Have the same domain, that is the same attribute name for content/Document and for name/Title.

I am unsure which is nicer, though.