Consolidate on checking for integers for -full / -uris

Consolidate on checking for integers for -full / -uris

The check for an integer when $flesh eq 'uris' was throwing errors
and breaking authority browsing; rather than complicating matters
further, use an explicit integer for the return value when the format
ends with "-uris" so that we can simply test for an integer value
greater than 0.

Signed-off-by: Dan Scott <dscott@laurentian.ca>
git-svn-id: svn://svn.open-ils.org/ILS/branches/rel_2_1@20336 dcc99617-32d9-48b4-a31d-7c20da2025e4