team based oops summaries should use the infestation team information to better group oopses

[Diogo Matsubara]

This is an idea from Gary:

Team based summaries should have two sections, one with infestations only for the specific team and another with oops reports with the same team but where infestations have a different team value.

Something like:

<gary_poster> self.errors = self.errors.filter(infestation__team__title__exact=team)
<gary_poster> self.errors = self.errors.filter(team__title__exact=team,
infestation__team__title__not=team)

[Robert Collins (lifeless)]

I'm not sure this is valid with our now flat structure, but perhaps other folk will want it.