This commit is a large refactoring of the getting started page. This
version contains only the information necessary to get off the ground
and get your bearings. There is also one consistent flow on information
rather than a spaghetti flow. Advanced installation details have been
moved to their own page (Docker and daemons). Details about opening
firewall ports have been expanded a bit and moved to the
troubleshooting page. The install instructions contain details about
all three install types (production, beta, and dev).
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