Spamer script, desktop file and symlink for autostart.

The launcher that comes with Firefox from Flathub doesn't set
StartupWMClass and Gala (the ElementaryOS window manager) doesn't match
the launcher to the window.

- Added Makefile to download the vendored and binary files.
- Replace gen-ssh-config with the said Makefile.
- Update all sorts of Bash completion files.
- Added `kompose` Bash completion file.
- Replace pythonrc submodule with said Makefile.
- Replace `bfg` shell function with said Makefile (and short shell
alias).
- Update Git hook to use Makefile, remove whatever was removed.
- Added `rc_update` shell alias to force update all said files.
- Added `kind` Golang binary.

  in the directory, moved the Molecule Bash completion script there.
- The gcc alias is now even stricter.
- Enabled cmdhist.

  https://raw.githubusercontent.com/metacloud/molecule/master/assets/bash_completion/molecule.bash-completion.sh
- Added alias to run the hostlocal Docker.