Projet::delete was throwing DB error messages directly to the user instead of logging them and showing a proper error message to the user

modules

combo lists of elements to link to project.

consumed by users. Each time a user enter its time consumed on a
project, a calculation is done to provide the cost for human services.
This value appears into the "Transversal view" of project.

project is asked during creation. A link to create project if it does
not exists is also available.
NEW Uniformize form creation of proposal to add public and private notes
during creation like done for order and invoice.

Added deprecation hinting for class properties
Added syslog warning events for deprecated functions, methods and/or their parameters
Added hinting for some constants

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

when cloning parent object, making no way to know when to use them or
not. I introduced a context to allow code to know that and do not
triggers twice.