The Git repository is hosted on GitHub and is owned by the SerenityOS
GitHub organization which means our root of trust is GitHub anyway
(where did you get _this_ repository from?) So let's remove the
checksum.
This changes the .port_include.sh script so that ports can more easily
create more than one launcher by making the install_launcher function
available to the port's package.sh script.
This creates launchers for the stpuzzles port in the Games/Puzzles
category.
