[1.0.X] Fixed a whole bunch of small docs typos, errors, and ommissions....

[1.0.X] Fixed a whole bunch of small docs typos, errors, and ommissions. Backport of the parts of r10371 that apply to the 1.0 docs.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@10372 bcc190cf-cafb-0310-a4f2-bffc1f526a37