Add a bunch of JS/CSS to allow offline development.
Flip 40x and 50x templates to use the "base" template, not the landing one. factorize a little part.
Coopyrights & Licenses content.
Update styles when `landing` Django app is enabled.
Settings update for JS/CSS pipeline, on the move to switch to BS3.
Constance configuration for offline mode and support channels.
Remove old relational-DB core, it's making the admin crash, and has never been used so far.
fix font-awesome path after a file move.
no-op translations tags changes.
Avoid JS crash when underscore is not installed.
Typo fix.
NO-op CSS recompilation change (it's done automatically by django-pipeline).
Make the contact-support template more generic and includable everywhere.
Split the licence and copyrights blocks, more easily translatable.
CSS cleanups & refactoring. Master CSS file rename. Move to BS3 (INCOMPLETE PATCH).
More constance directives, for the upcoming local user accounts implementation.
Prepare the production configuration to avoid local registrations (Trello says: limit registrations to "bakers" or beta-testers).
settings test in development configuration.
Requirements update.

- try to fix the Fabric line which makes the `pip freeze -lr reqs.txt` crash (bare `pip freeze` works but the egg name is borked).
- add new dependancies (django-{inplaceedit,user-accounts}) for upcoming public release.
- add paramiko to requirements to try to avoid the crash during first installation of 1flow (to be tested, still in my todo list).
- misc additions and `pytz` update.
django-{inplaceedit,user-accounts} settings, and new step in the social pipeline to deactivate users on the fly if social registrations are disabled. I still want to know who is creating accounts. Related URL and view. Still, this is an INCOMPLETE PATCH because ALL templates are missing.