Bug 13874: 'Rotating collections' are a circulation tool

Bug 13874: 'Rotating collections' are a circulation tool

Moves the entry for 'Rotating collections' from the Catalog
column to the 'Patrons and circulation' column.

To test:
- Verify the entry has been moved on the tools home page

NOTE: I agree that collections makes more sense under the new
      column.

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@unc.edu.ar>