Looking for missing translation of 'status' for 'List of commercial proposals' which is still in French.

Fix: We must use conf->global instead of constant. If not and constant is defined twice (with 2 differents entity values), we use the wrong one.

Fix: Bad SQL request: When using a left join on a table X, we must not use a condition on X on the where. If we do this, result will be same than using an exact join with mysql and will return an error with other databases.

Fix: We must use conf->global instead of constant. If not and constant is defined twice (with 2 differents entity values), we use the wrong one.

Fix: When a constant is defined as a constant for entity 0 and as a constant for entity x, we use entity x (This should not happen except during transition).

Fix: use invoice field entity in stat
Fix: replaced invoice is already with statut 3