Addition of PembayaranRestResult for returning json object.
Addition of getById for retrieving payment data.
Addition of data required in master page for all lists.
Addition of employee and date (now) default value in payment controller.
Addition of setter for jumlahBayar attribute.
updatePembayaran method required UpdatePembayaranRestRequest as
parameter.

Addition of UpdatePembayaranRestRequest.
Changes in javascript function, preparing to use bootstrap's modal in
pembayaran page.
Pembayaran page uses bootstrap's modal.