1.5.5

Closed issues:

• CRUD edit form reload don't use stickyGet parameters #524
• If AJAX request fails - provide user-friendly way to see error #522
• Date picker doesn't respect APP->ui_persistence->date_format #507

Merged pull requests:

• feature/allow dash char in form input name #530 (ibelar)
• fix/#522 Ajax error display #529 (ibelar)
• Fix/issue#524 crud #527 (ibelar)
• Add FilterMode\TypeDatetime #520 (skondakov)
• Atk4/feature/add filter type boolean #519 (skondakov)