Bug 7845: Multiple 260s don't display properly in search results

Bug 7845: Multiple 260s don't display properly in search results

Corrects display for multiple 260 fields in intranet and OPAC.
In intranet the order of fields was wrong on the detail page.
In OPAC and intranet punctuation for multiple 260 fields in the
result list was not displaying properly.

Example after correction:
Publisher: Jena : Elsevier, 1907 ; Stuttgart : Franckh, 1907-1992 ; Jena : Urban & Fischer, 1993-2003

Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>