Python Entrouvert

In FileSystemLoader rename settings from MULTITENANT_TEMPLATE_DIRS to TENANT_TEMPLATE_DIRS to unformize with other settings

refs #5106

Remove dead import on tenant_schemas.utils

refs #5106

middleware: match url /__version__ or /__version__/

readme updated

djommon/serializers/json: fix missing import and not handled case of new models

djommon: add JSON serializer supporting natural primary keys

multitenant: little fixes in models.py

multitenant: fix instructions on the settings in the README

multitenenant extension

humantime: convert datetime to current timezone in template tags

humantime: adapt datetime timezone before formating the first time

humantime: show datetime in the current timezone

humantime: remove x days ago formulation, use short date time format instead

humantime: all datetime objects are also date objects, to diffentiate them you must test for the former

add a sinkhole email backend

It makes all mails sent by Django go to an unique recipient; use it on
development and preproduction platforms when there are productions
accounts loaded.

add a template tags library to improve presentation of date and time

fix indentation error

djommon: add a UserInTracebackMiddleware

This middleware class add information on the currently logged in user to
request.META effectively logging them in the traceback.

djommon: add decorated_include utility extracted from polynum

version middleware: use application/json for mime-type

djommon: add a django VersionMiddleware

trivial: do not use an intermediary variable for widowless templatetag

eohumanize: template tags for eo applications

start a djommon django application