* admin/hosts.ptl: bad variable name
* admin/users.ptl: fix the ctach of the EmailErorr exception
* errors.ptl: cast "after_url" to string
* sessions.py: fix security issue: session attributtes was shared by
everybody
* po/fr.po: translate everything
git-svn-id: svn+ssh://labs.libre-entreprise.org/svnroot/larpe@473 3ed937ae-f919-0410-9a43-8e6f19e4ba6e