Merge pull request #97 from s0undt3ch/develop

Add a symlink `bootstrap-salt.sh` -> `salt-bootstrap.sh`. Fixes #73.
fixed a few pipelines where awk could do the job of several tools
Merge pull request #99 from gcw/develop

Fixed a few pipelines where `awk` could do the job of several tools.
Extend/fix parsing `/etc/os-release`.