Bug 12760 - add restrictions purge to cleanup_database.pl

Bug 12760 - add restrictions purge to cleanup_database.pl

This patch adds to the database cleanup script an option to purge expired patron restrictions (debarments in code).

Test plan :
- Select a borrower
- Create a restriction with expiration date in the futur
- Create a restriction expired since 7 days
- Create a restriction expired since 14 days
- run "misc/cronjobs/cleanup_database.pl -v --restrictions 14"
=> no restriction is removed for this borrower
- run "misc/cronjobs/cleanup_database.pl -v --restrictions 13"
=> restriction expired since 14 days is removed
- run "misc/cronjobs/cleanup_database.pl -v --restrictions 6"
=> restriction expired since 7 days is removed
- run without argument "misc/cronjobs/cleanup_database.pl"
=> You see help text for restrictions option
- run without days "misc/cronjobs/cleanup_database.pl -v --restrictions"
=> You get a purge on 30 days

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>