[sugar] Framework for managing the activities (=> symfony project)

[Bastien]

Sébastien Adgnot just pointed me out that the guys behind the symfony
project have developed a plugin management framework for they own needs:

  http://www.symfony-project.org/
  http://www.symfony-project.org/plugins/
  http://www.symfony-project.org/blog/2008/07/31/plugins-have-a-new-home

The structure looks pretty neat, and maybe something like that could be
useful on top of the git page for the activities.

FWIW.

-- 
Bastien