Documented that the simple cache backend was deprecated in [6822].
Documented that the simple cache backend was deprecated in [6822].


git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@6827 bcc190cf-cafb-0310-a4f2-bffc1f526a37

jamespacileo/django-france,alex/django-old,bfirsh/django-old,t11e/django,Instagram/django,bfirsh/django-old,Instagram/django,sam-tsai/django-old,mitsuhiko/django,hugs/django,Smarsh/django,Smarsh/django,disqus/django-old,skevy/django,dcramer/django-compositepks,jamespacileo/django-france,hugs/django,django-nonrel/django-nonrel,django-nonrel/django-nonrel,bfirsh/django-old,jamespacileo/django-france,sam-tsai/django-old,t11e/django,mitsuhiko/django,disqus/django-old,t11e/django,sam-tsai/django-old,mitsuhiko/django,hugs/django,alex/django-old,dcramer/django-compositepks,dcramer/django-compositepks,disqus/django-old,skevy/django,alex/django-old,Instagram/django,django-nonrel/django-nonrel,Smarsh/django,Smarsh/django,sam-tsai/django-old,skevy/django