Converted super.save(args, kwargs) call to .save(*args, **kwargs)

I don't know if the previous syntax is what caused the error that I emailed out, but the newest edition is  more in-line with code examples from django-core.  So I feel like it's worth changing to.  I don't think we can be too careful with .save(), frankly.

e.g.

django-core/db/models/query.py
```
class ValuesQuerySet(QuerySet):
    def __init__(self, *args, **kwargs):
        super(ValuesQuerySet, self).__init__(*args, **kwargs)
```
```
    def _clone(self, *args, **kwargs):
        clone = super(ValuesListQuerySet, self)._clone(*args, **kwargs)
```