
This adds a Taskserver module along with documentation and a small helper tool which eases managing a custom CA along with Taskserver organisations, users and groups. Taskserver is the server component of Taskwarrior, a TODO list application for the command line. The work has been started by @matthiasbeyer back in mid 2015 and I have continued to work on it recently, so this merge contains commits from both of us. Thanks particularly to @nbp and @matthiasbeyer for reviewing and suggesting improvements. I've tested this with the new test (nixos/tests/taskserver.nix) this branch adds and it fails because of the changes introduced by the closure-size branch, so we need to do additional work on base of this.
To build the manual, you need Nix installed on your system (no need for NixOS). To install Nix, follow the instructions at https://nixos.org/nix/download.html When you have Nix on your system, in the root directory of the project (i.e., `nixpkgs`), run: nix-build nixos/release.nix -A manual.x86_64-linux When this command successfully finishes, it will tell you where the manual got generated.