#2 ID naming convensions

[Cameron Shorter]

Each section in a generic document needs to have a
unique ID associated with it so that it can be
referenced from the generguide configuration file.
However, we are not sure what naming convension should
be used to ensure all document ids will be unique.
Should we use a combination of (guide name) and
(section title)? If so, we need to work out a
mechanism for registering all guide names to ensure
they are unique. Note that guides don't need to be
stored on the generguide web site. They can be stored
elsewhere on the web where we don't know about them.