contact manually. Quick hack added to use the creator instead.

This commit consists of patches automatically generated for this project on https://scrutinizer-ci.com

Intention is to remove all data linked to product_stock, which will be
deleted.

Pass ContratLigne objects to the triggers when updating contract
lines

from declaration array.

missing import_key field, ref generator parameter must be task not
project, import must use css, serious database integrity problem
accepting duplicate tasks.