[Zope-CMF] Extening CMFDocument with dynamic actions

[Goofrider]

I think a great feature to add to the default CMFDocument type would be the 
ability to create relationships to other CMF documents, or maybe just 
integrating with CMFTopics or ZCatalog.

Something like "<cmf:search>linux</cmf:search>" (or "[cmf:search[linux]]" 
in STX markup) displays the word "linux" as link, click on it and it 
automatically search the catalog for the word "linux" and displays the 
result.

I wish the default CMFDocument isn't so static as it is now. I hope it'll 
support dynamic actions in the near future.