Bug 3789 Set off shelving location in staff and OPAC title display

Bug 3789 Set off shelving location in staff and OPAC title display

Koha puts the shelving location immediately after the library name in the
"Location" column of the title display.  If the library name and/or shelving
location is wordy, the two can run together and a user can overlook the
shelving location.  I've added a new span class to the staff and OPAC .css
files and applied it to shelving location in both templates.  This puts the
shelving location on a separate line and in italics, to make it stand out from
the library name.

[Edit] Re-implemented some changes which wouldn't merge after so long

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>