Prevent payment from showing if bill validation fails; fixes #89.
Prevent payment from showing if bill validation fails; fixes #89.

k-joseph/openmrs-module-openhmis.cashier,andrewmoko/openmrs-module-openhmis.cashier,andrewmoko/openmrs-module-openhmis.cashier,andrewmoko/openmrs-module-openhmis.cashier,k-joseph/openmrs-module-openhmis.cashier,k-joseph/openmrs-module-openhmis.cashier