fix 4.6->4.7 upgrade check
fix 4.6->4.7 upgrade check

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