Add option to edit default pkg_config.xml URL.
Add option to edit default pkg_config.xml URL.

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