Added note to docs/sessions.txt about only being available in development version
Added note to docs/sessions.txt about only being available in development version

git-svn-id: http://code.djangoproject.com/svn/django/trunk@1304 bcc190cf-cafb-0310-a4f2-bffc1f526a37

--HG--
extra : convert_revision : 95b71ddaa76ab7fa7cb268dba23af14fc3068902

heracek/django-nonrel,heracek/django-nonrel,adieu/django-nonrel,adieu/django-nonrel,heracek/django-nonrel,adieu/django-nonrel