* [ADD] Accounts can now be restored from history * [ADD] Unit testing. Work in progress * [MOD] Improved file handlers * [MOD] Code refactoring
* [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
* [MOD] Code refactoring * [MOD] Make classes final for performance improvements and avoid some side behaviours