https://jira.deutsche-digitale-bibliothek.de/browse/DDBNEXT-1984: Use /institutions endpoint to show hierarchy on institution detail page
Merge branch 'DDBNEXT-1984' into 4.7
Merge branch 'master' of https://github.com/Deutsche-Digitale-Bibliothek/ddb-next
Bumped to revision 4.7.rc4
Merge branch '4.7'