2008-12-12  Claude Paroz  <claude@2xlibre.net>

	* people/forms.py: Form to enable a person to join a team as translator.
	* people/urls.py:
	* people/views.py: Replace generic view for 'person' to be able to handle
	team membership form.
	* stats/models.py: Typo in comment.
	* teams/forms.py: Form to edit membership status.
	* teams/models.py: Enrich team API with membership functions. Add new Role
	class to store membership info.
	* teams/views.py: Prepare team membership content and handle form post
	(change membership).
	* templates/people/person_detail.html: Add team membership and join form.
	* templates/teams/team_detail.html: Add team membership display and form.

svn path=/trunk/; revision=1214