Unset the session timeout if it is 0 or blank.
Unset the session timeout if it is 0 or blank.

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