Originally we used SHARED secret both for email and for the API. That
was a bad idea, and now that we're only using this value for one case,
I've renamed it to reflect its actual use.
This change includes a filthy hack around how Django handles
change_list_results.html -- I'm not thrilled with it, but it's as
elegant as I could come up with. I'm happy to field alternative ideas.
More details can be found in `documents/templatetags/hacks.py`
Specifically, this merge includes a significant facelift to the
documents listing page, moving away from the tabular layout and toward a
tileset look. I tried fiddling with the colours, but I just don't have
any skills in that area, so we're all stuck with Django'd default
colours until someone with an eye for colour can submit a better CSS.
Introduce some creative code around setting of ALLOWED_HOSTS that defaults to ['*']. Also added PAPERLESS_ALLOWED_HOSTS to paperless.conf.example with an explanation as to what it's for
