Bug 10352: Use a new object_type parameter instead of the module's name

Bug 10352: Use a new object_type parameter instead of the module's name

To dissociate a search on biblio and item, we pass a new "object_type"
parameter to viewlog.pl. If equals 'biblio' we will assume that "object"
contains a biblionumber

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Joy Nelson <joy@bywatersolutions.com>