Pylogctx

++++++++++++++++

- Fix deepupdate when target is not the same from the src

++++++++++++++++

- Fix update context from celery loggingTask

++++++++++++++++

- Extended nested dictionary when key already exist during context update (19)
- Celery: Manage context logs when task call another task

++++++++++++++++

- New method to update one object in adapter with custom parameters::

log_context.update_one(Request, p1=True, p2=...)

Or
with log_context.context.cm_update_one(Request, p1=True, p2=...):
...

++++++++++++++++

- Support Celery 4
- Support python 3.5