Note regarding V5 installer

[Cantor, Scott]

This is obviously just a courtesy, but anybody relying on the V5 snapshots is going to be stuck for a bit, my last commit breaks the installation process because we have to make a number of changes to it in light of IDP-2002 [1] and the relocating of lots of files in the distribution.

Progress on this reorg is looking good, but it wasn't expedient to wait for the installer to work to keep moving this reorg along, so it's going to be broken for a bit.

-- Scott 

[1] This is a member request to place all of the config files under control of a module so that backup versions get created on every upgrade for every file, and not just the subset that are in modules now.