This allows us to reuse any CSS we have, unify
their look and unify their look with the regular
page design.
This works by instantiating ActionView and rendering
templates in a rake task.
Inspired by the errgent gem.
to specify why users got a 404, and possibly leaking information while doing this
See discussion in #3717 for rationale on not implementing specific HTTP codes
This solves around #3717 and #3728
Adjusting travis breakage