v1.9.7: update domains, deprecate updater.sh

v1.9.6: improve whitelisting, fix --version, add tests, simplify rege…

…x iterations

v1.9.5: remove ips, better whitelisting

v1.9.4: simplify domain extraction

v1.9.3: simplify download function, retry downloads

v1.9.2; explicit ifs comparisons

v1.9.1: exit on downloads errors, add github action to test the script (

#51)

v1.9.0: generic awk & crontab (#46)

add blacklist.sources (#38)

v1.8.0: moving to full posix, removed zip & 7z support (#34)

* moving to full posix, removing zip and 7z support

* removing arrays

* add set -euf

* adding options parser

* arguments parser

* echoes changes

* adding mac dependencies

* shellcheck lint fix

* add signature

* change readme

* moving functions

* remove dead sources