Fixed: [ bug #1756 ] PHP error while removing an import profile
Because this is a legal issue (OPCA), i added the hidden constant for
3.7: WORKFLOW_PROPAL_CAN_CLASSIFY_BILLED_WITHOUT_INVOICES => Button
"Classified Billed" is visible on proposal even if there is no invoice
linked to proposal.
Fixed: Also fix get list of invoice that report too many data.
Merge branch '3.7' of git@github.com:Dolibarr/dolibarr.git into 3.7
Fixed: [ bug #1690 ] Sorting on salary table triggers SQL errors
Fix: [ bug #1687 ] The ref filter searches on ref and rowid in supplier
invoices list
Fix: [ bug #1722 ] Missing link in homepage project's box
Fixed: Do not show disabled user when creating a new event.
Fixed: Filter lost with navigation
Fix: [ bug #1736 ] Failing supplier Elephant numeration module with some
masks

Conflicts:
	htdocs/core/lib/functions2.lib.php
Merge pull request #2176 from marcosgdf/bug-1722

Fix: [ bug #1722 ] Missing link in homepage project's box
Merge branch '3.7' into bug-1533