Cleaned up a bunch of minor doc stuff:
Cleaned up a bunch of minor doc stuff:

  * Removed flatpages/redirects README; no other contrib apps have those.
  * Cleaned up top-level README to be more readable.
  * Removed outdated references to old docs (Fixes #8701)

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@8857 bcc190cf-cafb-0310-a4f2-bffc1f526a37

peplin/django-redirects