Automatic visiting of docstrings without manual.scr

[mdbergmann]

What would it take to make Codex parse the docstrings of function, classes, slots, etc. and include the documentation when it find a certain starting token in there.

I'd like to get rid of the manual definitions in manual.scr because I think it is a duplication and redundant. Usually you are in the source codes and write the docstrings anyway.