Added tests for example2 poll delete view.
Added tests for example2 poll delete view.

yarbelk/django-admin2,andrewsmedina/django-admin2,hnakamur/django-admin2,yarbelk/django-admin2,hnakamur/django-admin2,andrewsmedina/django-admin2,andrewsmedina/django-admin2,pydanny/django-admin2,pydanny/django-admin2