Use all binaries shipped with the tar file

[ochorocho]

• Use mkcert
• Add bash completion and set default shell on alpine to bash (https://wiki.alpinelinux.org/wiki/Change_default_shell and https://www.cyberciti.biz/faq/alpine-linux-enable-bash-command-autocomplete/)
• Cleanup files/folder

See:
047d5d5#r142839437