Bug 7447 allow to specify a date in overdue_notice.pl
This patch add a new parameter to overdue_notices.pl, that is a date.
If you add --date=YYYY-MM-DD when running overdue_notices, it will generate overdues as if you were on date provided
that's usefull if you want to relaunch an overdue calculation that has failed, of after changing your circ rules
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com> Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>