Use flux_units templatetag on transients-ng view.
We can use a 'select_related' for foreign key relations.

Unsuitable for many-to-many selects, but works fine here as we're just
following one-to-one relations. The result is a single larger JOIN
query to the database, rather than several smaller ones.

c.f.
https://docs.djangoproject.com/en/dev/ref/models/querysets/#django.db.models.query.QuerySet.select_related
Merge pull request #1 from timstaley/transient_ng

Tweaks