fix: iptables needs iptables-persistent package without it iptables-restore and iptables-save are not installed

don't mix refactor and new default values

Sugesstion Refactor code for better checks, overview and compact code.

fix R_ARCH=arm64 check for crosscompiler dep. was nested in if-check for R_ARCH=arm - thus never could never be true

fix iptables path in update-rules

Merge pull request #2 from drtyhlpr/master Merge pull request #143 from burnbabyburn/master

Merge pull request #143 from burnbabyburn/master SPI on 3B+ - thanks burn!

iptables fix iptables-legacy, iptables-legacy-save, iptables-legacy-restore set as default added 5s delay in firewall start. Fixing error "another app is currently holding the xtables lock" on boot

Merge pull request #20 from drtyhlpr/master update from master

fix