Fix, the mail title cause an unexpected error

jm2l/__init__.py

@@ -41,13 +41,12 @@ def mailer_tasks(config):
         
         # Prepare Plain Text Message :
         Mail_template = Template(filename='jm2l/templates/mail_plain.mako')
-        mail_plain = Mail_template.render(request=request, User=StaffUser, Contact=Contact, action="Tasks", output_encoding='ascii',)
+        mail_plain = Mail_template.render(request=request, User=StaffUser, Contact=Contact, action="Tasks")
         # Prepare HTML Message :
         Mail_template = Template(filename='jm2l/templates/mail_html.mako')
-        mail_html = Mail_template.render(request=request, User=StaffUser, Contact=Contact, action="Tasks", output_encoding='ascii',)
-        
+        mail_html = Mail_template.render(request=request, User=StaffUser, Contact=Contact, action="Tasks")
         # Prepare Message
-        message = Message(subject="[JM2L] Rappel des Tâches pour les JM2L",
+        message = Message(subject="[JM2L] Rappel des Tâches pour les JM2L".decode('utf-8'),
                           sender="contact@jm2l.linux-azur.org",
                           recipients=[StaffUser.mail],
                           body=mail_plain, html=mail_html)
@@ -93,7 +92,7 @@ def main(global_config, **settings):
     config.add_static_view('vendor', 'static/vendor', cache_max_age=3600)
     config.add_static_view('upload', 'upload', cache_max_age=3600)
     config.add_static_view('resources', 'resources', cache_max_age=3600)
-       
+    
     # ICal Routes
     config.add_route('progr_iCal', '/{year:\d+}/JM2L.ics')