MT#5879 Save intermediate state with separation of invoice_template logic for further usage in admin and customer areas.
MT#5879 Separate actions for invoice templates.  Saving and view should be separated too. Rename ttemplates: calls to invoice and "template" according to content.
MT#5879 Change work with root element so now after moving rows block columns stay on correct position.
MT#5879 Use identifier for datatables helper initialization.
MT#5879 Detailes with renamed zonecalls.