* Rebase onto develop
* Use exit condition instead of englobing condition
* Add informative modals that can be called from modal toolbox
* Refactor "apply_modify" and "apply_new" into own controller, handle ajax requests with a json response and handle these responses in linkset creation/edition
* Fix merge issues
* Remove inverted condition
* Move linkset create button to a better place, still needs to fix duplicate "New" button caused by a refactor
* Handle "Cancel" button in modals
* Do not display relations when editing an object in a modal
* More elegant way to add "New" button to relations lists
* Factorize vertical highlights in alerts and modal in a single mixin
* Replace button name with dict entry code
* Change route name to snake case
* More elegant way to add "Create in modal" button to relations lists
* Replace triple if with in_array
* Move listener to body
* Rename variable to match boolean rules
* Rename event
* Rename extra param
* Add phpdoc
* Revert changes
* Check indirect linkset rights before allowing creation in modal
