Metadata: hierarchy and order ready for image page (not for batch edit)
minor cleaning
Single edit: tested
edit selected: working with hierarchy
Edit selected: add/remove button working
fix for: https://github.com/imeji-community/imeji/issues/452
fix for: https://github.com/imeji-community/imeji/issues/437
fix for: https://github.com/imeji-community/imeji/issues/447
small expression change for better consistency
fixed sort by status
edit selected: 3 modus tested
Merge branch 'release-1.2.1.0' of https://github.com/imeji-community/imeji into release-1.2.1.0
Batch edit: clear button works
Profile: drop at the end of the list added
Profile: restrict drop area
https://github.com/imeji-community/imeji/issues/443
Image generator: better exception handling
https://github.com/imeji-community/imeji/issues/445
Servlet order changed
https://github.com/imeji-community/imeji/issues/459