* First things of hierarchy driver
Merge branch 'development' into feature/hierarchy
Merge branch 'development' into feature/hierarchy
Merge branch 'development' into feature/hierarchy
* Basic implementation of hierarchy
Merge branch 'development' into feature/hierarchy
Merge branch 'feature/hierarchy' into development

Conflicts:
	themes/swissbib/css/swissbib.css
Merge remote-tracking branch 'origin/development' into development