Added py2x tox.ini settings for django 1.5
Added py2x tox.ini settings for django 1.5

django-treebeard/django-treebeard,tabo/django-treebeard,django-treebeard/django-treebeard,django-treebeard/django-treebeard,skirsdeda/django-treebeard,skirsdeda/django-treebeard,tabo/django-treebeard,skirsdeda/django-treebeard,tabo/django-treebeard,tabo/django-treebeard,skirsdeda/django-treebeard