Change typo Localisation to Localization for Bug # 3102

[RM note: I think there are a few people who wouldn't
 call "localisation" a typo - such as our UK, NZ,
 Australian, etc. contributors ;-) ].  That said,
 I'm pushing this patch to consistent with the
 general trend of the English varient used on the
 /prog/ templates.  There's no implication that en_US
 is the "correct" version of the language.]

Signed-off-by: Galen Charlton <galen.charlton@liblime.com>
Signed-off-by: Henri-Damien LAURENT <henridamien.laurent@biblibre.com>

koha-tmpl/intranet-tmpl/prog/en/modules/circ/waitingreserves.tmpl

@@ -64,7 +64,7 @@ $.tablesorter.addParser({
                         <th>Available since</th>
                         <th>Title</th>
                         <th>Patron</th>
-                        <th>Location</th>
+                        <th>Localization</th>
                         <th>Action</th>
                 </tr></thead>
                         <tbody><!-- TMPL_LOOP NAME="reserveloop" -->