Added 'makemigration' command to tests
Added 'makemigration' command to tests

pombredanne/django-simple-history,emergence/django-simple-history,treyhunner/django-simple-history,luzfcb/django-simple-history,pombredanne/django-simple-history,emergence/django-simple-history,luzfcb/django-simple-history,treyhunner/django-simple-history