Added comment app with support for adding and deleting comments to and from documents

apps/comments/urls.py

@@ -0,0 +1,7 @@
+from django.conf.urls.defaults import patterns, url
+
+urlpatterns = patterns('comments.views',
+    url(r'^(?P<comment_id>\d+)/delete/$', 'comment_delete', (), 'comment_delete'),
+    url(r'^multiple/delete/$', 'comment_multiple_delete', (), 'comment_multiple_delete'),
+    url(r'^add_to_document(?P<document_id>\d+)/$', 'comment_add', (), 'comment_add'),
+)