Change the scope of instructions and procedures to Preparation => Finalization

[benjaoming]

There are often breakdowns of servers, and we should be able to have a buffer of prep'ed servers that just need finalization of the configuration.

This is both related to documentation and the technical procedure, such that maybe once with have a UI for installation, we make it possible for it to detect that the server is "prepared" for an unspecific target school and needs to be finalized.