Python 2.3 fix: assertTrue *still* doesn't exist in Python 2.3
Python 2.3 fix: assertTrue *still* doesn't exist in Python 2.3

The tests and testing framework should use failUnless() instead.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10100 bcc190cf-cafb-0310-a4f2-bffc1f526a37

--HG--
extra : convert_revision : 40857dfa03288941c607456b9fd7a2cbb26dae7b

adieu/django-nonrel,heracek/django-nonrel,heracek/django-nonrel,heracek/django-nonrel,adieu/django-nonrel,adieu/django-nonrel