re-route for more actions
comment out spinners
fix error message
Add commit information in files view
Add diff view
Add history feature (now yet linked in view)
remove redundant parameter
deactivate commit info per file
change routing behaviour in files view
group files by ontology in files view
fix test
Add cloning test
add cloning feature to backend

two tests fail because a shallow clone has a faulty parents-reference in the oldest cloned commit
Tests fixed and refactored
iri can be blank
fix tests
revert to 9cfb01db247ca04bb4b5b337bbd77c66b7150e53 (disallow iri being blank)
fix history link
redirect to ontology view
change link in files view