Arch compatiblity

[olipinski]

This should make the scripts and code Arch compatible.

The only issues currently are:

• mpack is only on AUR so if there was a good replacement that could work well.
• the changes to sudoers such as making the user be able to NOPASSWD execute anything are not the best, maybe there could be a way to avoid that?

Both of the issues are completely non-blocking though, just for future development.