* [MOD] Improved ACL management
* [MOD] Improved actions management. Actions Ids need to be updated
* [MOD] Do not return false when a database transaction is trying to start during another transaction.
* [MOD] Code refactoring and cleanup
* [ADD] Added more unit tests. Work in progress.
* [FIX] Fixed wrong behaviour when updating an LDAP user. Related #950. Thanks to @Fizard for the feedback.