Moved GUI stuff into conf/gui.
Moved os_hooks into lib/conf/tasks/{os}.
Moved shared conf modules into conf/shared. Load them on-demand with whenever.
Moved install/uninstall tasks into conf/tasks.
Moved some more stuff around.
And more stuff.
Ok, with this final moved, we're finally able to reorder the code inside conf/cli. Way better.
Replaced firewall.js with NPM lib.