* Fix compatibility of upgrade.sh in openwrt and add service init script for openwrt. * Apply suggestions from code review Co-authored-by: Gusted <[email protected]> Co-authored-by: zeripath <[email protected]> * Update contrib/upgrade.sh Co-authored-by: Norwin <[email protected]> Co-authored-by: 6543 <[email protected]> Co-authored-by: Gusted <[email protected]> Co-authored-by: zeripath <[email protected]> Co-authored-by: techknowlogick <[email protected]> Co-authored-by: Norwin <[email protected]> Co-authored-by: techknowlogick <[email protected]>