Close #4874

Close #4747

Close #4742

Close #4424

Close #4442

Close #4737

Close #4743

Close #4748

Close #4851

Close #4766

re-establish user-agent

VAT identified by a code.

Since we don't ship the required libraries anymore,
if the module had been enabled before upgrade,
the code was failing making Dolibarr totally unusable.

Mitigated the issue by disabling sentry logging
if the required libraries are unavailable.

Conflicts:
	dev/skeletons/skeleton_list.php
	htdocs/projet/list.php
	htdocs/societe/list.php

FIX When changing thirdparty on event card, the showempty option of
contact was lost.
FIX Bad placeholder shown on combo to select a thirdparty.

Conflicts:
	htdocs/core/lib/files.lib.php

work.

Conflicts:
	htdocs/core/lib/files.lib.php

Conflicts:
	htdocs/core/lib/files.lib.php

ref_client in order
ref_customer in shipping