Version 1.5.63

/forecast/: Bug fix - return active false for inactive forecasts (inactive forecasts previously returned active true).
/customerinvoice/row/{customerinvoicerow_id}: Fix field Addition
/project/contact/: A new GET-endpoint that returns all projects contacts.
/project/{project_id}/contact: A new GET-endpoint that retrieves the list of contacts for a specific project.
/type/role/: A new GET-endpoint that returns all project contact role types.
/type/role/{role_id}: A new GET-endpoint that retrieves a specific project contact role by id.
/maillist/subscribe/: A new POST-endpoint that subscribes email to the information mail list.
Improved error messages when providing a filter in the wrong format.