Remove previous firmware.tgz on bootup if present.
Remove previous firmware.tgz on bootup if present.

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