MT#5879 Save state before adding from-to search to invoices.
MT#5879 Fix commited error with remove pageStart.
MT#5879 Commit doesn't work. Half of form rename.
MT#5879 Complete rename invoice forms.
MT#5879 Complete rename invoice forms.
MT#5879 Filter invoices by client. Generate form.

Left to do:
fix filtering by date, if field isn't a eppoch
generation
mark selected client in clients list. add big button to clear client selection