v3.1621

<release version="3.1621" date="4/Dec/2014">
<note id="1" author="amiranda@ebsco.com">applied $search_context code in
GetCatalogueAvailability() to match search code at Catalyst instance.
Plus put GetCatalogueAvailability call in a trycatch block</note>
<note id="1" author="amiranda@ebsco.com">added PageURL function in
EDS.pm to refresh if run tool encounters an error.</note>
</release>