Changed docs/cache to add docs for site-wide caching, via the cache middleware
Changed docs/cache to add docs for site-wide caching, via the cache middleware

git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@224 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django