Changes
Added link to VuFind Unicorn project.
* III - Item status
* Koha - Item status (incomplete)
* Unicorn - Item status; additional functionality may be available through the separate [http://code.google.com/p/vufind-unicorn/ VuFind Unicorn project].
* Virtua - Course reserves, Item status, Patron details, Place holds, Renew items
* Voyager - Course reserves, Item status, New item list, Patron details, Place holds (in progress in branch), Suppressed record list
