Replaced dict reprs in tests with explicit looks at each key. This should fix...

Replaced dict reprs in tests with explicit looks at each key. This should fix many spurious test failures on other VMs (first noticed on Jython).

git-svn-id: http://code.djangoproject.com/svn/django/trunk@7322 bcc190cf-cafb-0310-a4f2-bffc1f526a37