Motivation for this change

Addresses:

CVE-2019-20159
CVE-2019-20160
CVE-2019-20161
CVE-2019-20162
CVE-2019-20163
CVE-2019-20164
CVE-2019-20165
CVE-2019-20166
CVE-2019-20167
CVE-2019-20168
CVE-2019-20169
CVE-2019-20170
CVE-2019-20171
CVE-2019-20208
CVE-2020-11558
CVE-2020-6630
CVE-2020-6631

of mixed severity but at least a couple of them look pretty serious.

For each of these vulnerabilities, the trail leads to a commit included in 1.0.0.

Hopefully we could get a maintainer (@bluescreen303 ? @mgdelacroix ?) to take a look at this because I don't really know how to test it. The executables behave in a very similar (odd) way to the binaries in the previous 0.8.0 package, anyway.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.