tests for last_child field
tests for last_child field

sorry, i broke test

Almad/django-threadedcomments,coxmediagroup/django-threadedcomments,nikolas/django-threadedcomments,HonzaKral/django-threadedcomments,ccnmtl/django-threadedcomments,HonzaKral/django-threadedcomments,SmithsonianEnterprises/django-threadedcomments,coxmediagroup/django-threadedcomments,nikolas/django-threadedcomments,yrcjaya/django-threadedcomments,incuna/django-threadedcomments,SmithsonianEnterprises/django-threadedcomments,PolicyStat/django-threadedcomments,ccnmtl/django-threadedcomments,yrcjaya/django-threadedcomments