* treewide: http -> https sources
This updates the source urls of all top-level packages from http to
https where possible.
* buildtorrent: fix url and tab -> spaces
Semi-automatic update. These checks were done:
- built on NixOS
- ran `/nix/store/hh6cqaai79dsh200g3c581iaq52yi580-argyllcms-2.0.0/bin/synthcal help` got 0 exit code
- found 2.0.0 with grep in /nix/store/hh6cqaai79dsh200g3c581iaq52yi580-argyllcms-2.0.0
- found 2.0.0 in filename of file in /nix/store/hh6cqaai79dsh200g3c581iaq52yi580-argyllcms-2.0.0
There are many more packages to fix, this is just a start.
Rules:
* Don't repeat the package name (not always that easy...)
* Start with capital letter
* Don't end with full stop
* Don't start with "The ..." or "A ..."
I've also added descriptions to some packages and rewritten others.
