Bug 10120: Adding a syspref to control if overdue charges are updated on return

Bug 10120: Adding a syspref to control if overdue charges are updated on return

On by default.

To Test

1/ Create an overdue item, that should get fines
2/ Return the item
3/ Check the borrowers record to see if the fine has been added/updated

Apply patch
1/ Make sure preference is set to do
Repeat steps 1-3 above

2/ Switch the preference to don't
Repeat stes 1-2
3/ Check the fine hasn't been added/updated

Signed-off-by: David Cook <dcook@prosentient.com.au>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
All tests and QA script pass, works as described.
I would categorize this a bug fix for libraries that don't want
the new changed  behaviour that was introduced by recalculating
fines on return.
Signed-off-by: Galen Charlton <gmc@esilibrary.com>