Donne la possibilité de faire un filtrage sur les agenda en fonction du numéro de projet passé en GET : &project=XX
Document the ability to export agenda calendar restricted to project ID
Fix: Must ignore such fields
Merge branch 'develop' of git@github.com:Dolibarr/dolibarr.git into develop
Update changelog
Merge branch 'develop' of github.com:Dolibarr/dolibarr into develop
Merge branch 'agenda-export-by-project' of github.com:AMMD/dolibarr into
AMMD-agenda-export-by-project

Conflicts:
	htdocs/admin/agenda_xcal.php
Update doc
Merge branch 'AMMD-agenda-export-by-project' into develop