R1:ef0a0b572783

First version of "Quest Tracker" Home NUX

Summary:
Ref T5317. General idea here is that Dashboards are replacing the home page soon. We think they'll do a good job for normal users, but they aren't very good for new administrators who have just completed an install. In this case, any dashboard we put there by default will be empty and not very useful or helpful. It's also technically a bit messy to build objects by default.

Instead, give new administrators a "Quest Tracker" UI to help them get through…