LP#
1198465 Stop using storage wrapper for generate_fines()
With pieces now in place, let's stop using the storage wrapper for
generate_fines() and call the code directly.
Also, to avoid potential confusion, rename the calling function in
Circulate.pm from generate_fines() to handle_fines(). This function
may also be taking on more than just fine generation in the near future.
Finally, since the new generate_fines() expects one or more pre-filtered
circ objects, add the requisite stop_fines check to handle_fines().
Signed-off-by: Dan Wells <dbw2@calvin.edu>