This patch does:
[1] It removes some unused modules.
[2] It adds some options not listed in the synopsis.
[3] It removes an unused sql expression from one query.
Note: In fines related code the third parameter of CalcFine sometimes
is named as days_overdue too.
[4] Corrects a few typos in comments or pod.
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl> Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>