[1.0.X]: Fixed #9853 -- Added information to the model date/time fields to...

[1.0.X]: Fixed #9853 -- Added information to the model date/time fields to note the Python objects used to represent them.

Backport of r10198 from trunk.


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@10199 bcc190cf-cafb-0310-a4f2-bffc1f526a37