Rd #14085 pnb

Conflicts:
	cosmogramme/sql/patch/patch_239.php

Admin var afterSave refactoring: now each variable can have its own hook

admin variables: fix regressions in auto-creation

admin variables screen refactoring

admin variables screen: can specify a Form for each variable

update to last storm

update to last storm

regression fix

constraint display styling

display usage constraints in edit album form

parses availability time

more loan constraints parsing

update to last storm

patch fix

usage constraints properties stored as serialized json

use last storm

extract loan duration