It makes more sense to use PHP to generate PHP code than to use Bash. I
love writing Bash scripts, but I know it's not for everyone, and they
can become quite complex. Porting them to PHP code also lowers the
barrier for people to change them.
While I was making those changes, I also noticed a problem with how we
save the domain suffixes. We're converting all of them to ASCII, so we
are not preserving languages such as Chinese, Thai, and Hebrew, which
use non-ASCII characters.
