Bug 13564: Items search: rename Stock number to Inventory number

To test:
- Go to Advanced search
- Click on link 'go to item search'
- Check the search options in the second section for "Stock number"
- Do a search and note the column name appears as "Stock number"
- Apply patch
- Try the search again and check that "Inventory number" shows

Signed-off-by: Katrin Fischer <[email protected]>
Works as described, thx!

Signed-off-by: Tomas Cohen Arazi <[email protected]>

koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/itemsearch.tt

@@ -5,7 +5,7 @@
   [% SWITCH label %]
     [% CASE 'barcode' %]<span>Barcode</span>
     [% CASE 'itemcallnumber' %]<span>Call number</span>
-    [% CASE 'stocknumber' %]<span>Stock number</span>
+    [% CASE 'stocknumber' %]<span>Inventory number</span>
     [% CASE 'title' %]<span>Title</span>
     [% CASE 'author' %]<span>Author</span>
     [% CASE 'publishercode' %]<span>Publisher</span>
@@ -214,7 +214,7 @@
         + '      <th>' + _("Home library") + '</th>'
         + '      <th>' + _("Current location") + '</th>'
         + '      <th>' + _("Shelving location") + '</th>'
-        + '      <th>' + _("Stock number") + '</th>'
+        + '      <th>' + _("Inventory number") + '</th>'
         + '      <th>' + _("Status") + '</th>'
         + '      <th>' + _("Checkouts") + '</th>'
         + '      <th></th>'