Bug 12342: Patron registration datepicker dropdown shows only 10 years

Bug 12342: Patron registration datepicker dropdown shows only 10 years

This patch changes the options to the date picker, allowing easy
selection of dates up to 120 years from the current date.

To test:
- Click on 'Patrons' from the main menu, select 'New patron'
- Set input focus to the 'Date of birth' input field,
  the date selection widget should show up.
- The year selection drop-down will only show current year minus 10.
- Apply the patch
- Go back to the same screen, set input focus to the 'Date of birth' field.
- The year selection drop-down should show current year minus 120.

Signed-off-by: Hector Castro <hector.hecaxmmx@gmail.com>
Works as advertised

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>