Qubes-VM-hardening

Files for enhancing Qubes VM security and privacy

rc.local: Protect sh and bash init files

Placed in /etc/rc.local of a template VM, this makes the shell init files immutable so PATH and alias cannot be used to hijack commands like su and sudo. I combed the dash and bash docs to address all the user-writable files. Feel free to comment or create issue if you see an omission or other problem.