Add address family input validation on the Gateways edit page, also prevent adding gateways on interfaces that do not carry that address family. Fix Ticket #1633
Add address family input validation on the Gateways edit page, also prevent adding gateways on interfaces that do not carry that address family.
Fix Ticket #1633

NOYB/pfsense,phil-davis/pfsense,BlackstarGroup/pfsense,pfsense/pfsense,jxmx/pfsense,jxmx/pfsense,NOYB/pfsense,BlackstarGroup/pfsense,dennypage/pfsense,ptorsten/pfsense,brunostein/pfsense,ch1c4um/pfsense,NewEraCracker/pfsense,dennypage/pfsense,NOYB/pfsense,ch1c4um/pfsense,BlackstarGroup/pfsense,brunostein/pfsense,dennypage/pfsense,jxmx/pfsense,ptorsten/pfsense,ptorsten/pfsense,brunostein/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,phil-davis/pfsense,ch1c4um/pfsense,pfsense/pfsense,pfsense/pfsense,NewEraCracker/pfsense,BlackstarGroup/pfsense,ch1c4um/pfsense,dennypage/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,pfsense/pfsense