Fix HTML format error in french templates. Change the date format. Replace Unknown by Inconnu. Remove extra whitespace. Correct some french translations.
Fix HTML format error in french templates.
Change the date format.
Replace Unknown by Inconnu.
Remove extra whitespace.
Correct some french translations.

Correct an error in the "closed_cc" template for every languages.

rossp/django-helpdesk,django-helpdesk/django-helpdesk,django-helpdesk/django-helpdesk,rossp/django-helpdesk,gwasser/django-helpdesk,django-helpdesk/django-helpdesk,gwasser/django-helpdesk,rossp/django-helpdesk,rossp/django-helpdesk,gwasser/django-helpdesk,django-helpdesk/django-helpdesk,gwasser/django-helpdesk