Have gunicorn use 12000, not clash with runserver
utf8 encode some fields to enable csv support
Modify backup_db fab task to transfer files too
Make gunicorn use a separate logfile

Necessary for debugging the ever-changing build config
Update nginx config to pass more to the app

This fixes a weird problem where some parts of the site were
forwarding to a bogus hostname.

For example hitting localhost:8080/admin/ would work, but
localhost:8080/admin would forward to localhost/admin.
Merge pull request #267 from steventlamb/topic/ops

Topic/ops