Pin Django version for nosedjango compatibility
Pin Django version for nosedjango compatibility

Until nosedjango works with Django 1.6, this is the simplest fix.

erikdejonge/django-htmlmin,argollo/django-htmlmin,cobrateam/django-htmlmin,Zowie/django-htmlmin,Zowie/django-htmlmin,Alcolo47/django-htmlmin,erikdejonge/django-htmlmin,erikdejonge/django-htmlmin,cobrateam/django-htmlmin,argollo/django-htmlmin,Alcolo47/django-htmlmin