a display order issue

By extending the topic display to include includes, names and tag matches as well as children, we must deal with how to order Pages and LSecs when they are not being sorted. The answer is to list all the children first, then the includes, followed by names and then tag matches.

I expect that the second item in each row will identify the relationship between the current topic and the topic being listed.

I suspect things may be particularly interesting when listing LSecs, which can be nested.

But the more I reflect on this, the more convinced I am that this is an important change and should be included in 2.0.5. It should greatly enhance the value of tag matches and names.