Ivan added support to build everything on Debian/Raspbian stretch, added
some alternate URLs, and updated the "just how the hell do you install
Marinetti right now exactly?" dance.
This was more frustrating to merge than it honestly should've been and
I'm kinda responsible for some of that, but it's never gonna get easier
to maintain unless we break from the single-developer monolithic blocks.
Hopefully this will be the last time we do things this way.
suppress null byte read warnings in Bash 4.4
enable SSH server on Raspberry Pi if disabled
Internet Archive backup URL's for external downloads, where possible
compiles AppleTalk kernel if -c flag is specified, rather than downloading
better cleanup after AppleTalk kernel compile
notification if AppleTalk kernel module doesn't load
fixed download links for communication software
fixed bugs possibly preventing compile of macipgw and ciopfs
fixed minor bugs during initial setup prompts
os option (Raspbian update) removed from a2server-setup