fix: Input validation problem with VIPs and "none" type interfaces
fix: Input validation problem with VIPs and "none" type interfaces

http://redmine.pfsense.org/issues/2291

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