newforms-admin: Fixed #7819 -- Added missing imports to contrib admin…

….py modules from [7953]. Thanks rajeshdhawan for catching this.

git-svn-id: http://code.djangoproject.com/svn/django/branches/newforms-admin@7957 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/comments/admin.py

@@ -1,5 +1,6 @@
-
 from django.contrib import admin
+from django.contrib.comments.models import Comment, FreeComment
+
 
 class CommentAdmin(admin.ModelAdmin):
     fieldsets = (

django/contrib/flatpages/admin.py

@@ -1,5 +1,7 @@
-
 from django.contrib import admin
+from django.contrib.flatpages.models import FlatPage
+from django.utils.translation import ugettext_lazy as _
+
 
 class FlatPageAdmin(admin.ModelAdmin):
     fieldsets = (

django/contrib/sites/admin.py

@@ -1,5 +1,6 @@
-
 from django.contrib import admin
+from django.contrib.sites.models import Site
+
 
 class SiteAdmin(admin.ModelAdmin):
     list_display = ('domain', 'name')