changed redirect_to_current_compterendu view to use Maraude manager's

get_in_progress(), which is now a method instead of cache property.
+ better display of admin panel's buttons in sujets detail views

notes/admin.py

@@ -24,5 +24,5 @@ class NoteAdmin(admin.ModelAdmin):
                         'fields': ['sujet', 'text']}),
     ]
 
-    list_display = ['created_date', 'sujet', 'child_class', 'text']
+    list_display = ['created_date', 'sujet', 'cast', 'text']
     list_filter = ('created_date', 'created_by')