Bug 4215 OPAC "Search for title in" can fail with trailing slashes in title

Bug 4215 OPAC "Search for title in" can fail with trailing slashes in title

While configuring Search for Title In links, I found that some target sites
can't process an incoming title search if the title being sent has a trailing
slash.  If the same search is sent without the trailing slash, it works fine.  I
modified opac-detail.pl to strip off the trailing slash (and space) for titles
being sent to other sites.

Signed-off-by: Galen Charlton <gmcharlt@gmail.com>