[Pharo-project] HelpSystem implementation

Hi Thorsten! I have two questions regarding your implementation: - What is the reason to have HelpBuilder and to create a hierarchy of HelpTopic instances mirroring the layout of the actual content classes? Why not use the class objects directly? - Why do you use pragmas for the titles of the pages? If I understand correctly, pragmas are for metadata of methods, but it seems to me that the title of a page belongs to its data just as much as its contents do. Danny