Added Encoder to Payment model
Renamed Payment panel titles
Added cancelling payment
Updated Payment list to factor in cancelled Payments
Added filtering cancelled payments
Merge branch 'cancel-payment'
Added active flag to Customer model
Disabled customers can no longer be selected when creating Sales
Requisition or Payment
Merge branch 'allow-disabling-customer'
Increased font size for submenus
Handled SI number change in Sales Return
Updated version to 1.7.0