Bug 11577: Code and intranet template changes

Bug 11577: Code and intranet template changes

This patch adds a checkbox for "Automatic renewal" to the checkout page.
CanBookBeRenewed is modified to include two new errors:
- auto_renew (renewal shouldn't be done manually)
- auto_too_soon (renewal is premature and shouldn't be done manually)

To test:

1) Add or edit an issuing rule with "Automatic renewal" and another
   one without it.
2) Issue at least three items:
   - automatic renewal by issuing rule
   - automatic renewal by Checkbox on the checkout page
   - no automatic renewal
3) Test the following steps for both:
   Home > Circulation > Checkouts
   Home > Patrons > Patron details
4) Confirm that issues with automatic renewal cannot be renewed manually,
   even if there are still renewals left and it's not too soon to renew.
5) Confirm that "Scheduled for automatic renewal" and the remaining
   renewals are displayed. If no renewals are left "Not renewable" should
   be displayed.
6) Confirm that issues without automatic renewal behave as usual.

Sponsored-by: Hochschule für Gesundheit (hsg), Germany
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>