Replaced whiptail with dialog since dialog has more features and looks
nicer imo
OctoPrint has been moved to /srv/octoprint
There is now an OctoPrint group as well as an OctoPrint user
First-time will now ask if you want to preinstall some curated plugins
Added warning advising end users that this is nowhere near production
ready.
Added more stuff to TODO
README improvements
Timestamps in the build now grab the time at the beginning of the build,
instead of the end
Sudoers file didn't use chroot path
Rearranged octo-config into first-time folder and renamed first-time
folder to utils
