BUILD: Change build_node.sh to source private.conf
BUILD: Change build_node.sh to source private.conf

All build scripts should source private.conf

nlgcoin/guldencoin-official,nlgcoin/guldencoin-official,nlgcoin/guldencoin-official,nlgcoin/guldencoin-official,nlgcoin/guldencoin-official,nlgcoin/guldencoin-official