bug 3481: Allow Item Temporary Locations for Processing and Shelving.

bug 3481: Allow Item Temporary Locations for Processing and Shelving.

Allows temporary locations corresponding to 'in processing' and 'shelving'
so that newly-created items, and newly-returned items do not show
immediately as a available. Three new system preferences govern the usage
of these features.

NewItemsDefaultLocation. If system pref NewItemsDefaultLocation is set to a location code,
 all newly catalogued items will be set to the location set in this preference.
 Location code must be a valid LOC authorized value type.

InProcessingToShelvingCart. if the system pref InProcessingToShelvingCart is turned on,
any items run through returns.pl with a location code for 'PROC', will be modified to
have a new location code of 'CART'.

ReturnToShelvingCart.  If the syspref ReturnToShelvingCart is turned on,
all items returned other than confirmed holds will have a new location code of 'CART'.
Any item issued is automatically taken of the shelving cart.

Adds a cron script shelf_to_cart.pl which should be run hourly.
Updates all items with a location of CART to the item's permanent location.

The original location code is stored in the new items column 'permanent_location'.

Original Author: PTFS Contractor <dbavousett@ptfs.com>

This work co-sponsored by
  Middletown Township Public Library, Middletown, NJ USA  and
  East Brunswick Public Library, East Brunswick, NJ USA

Signed-off-by: Colin Campbell <colin.campbell@ptfs-europe.com>
Signed-off-by: Galen Charlton <gmcharlt@gmail.com>