Add vendor links in cost grid when viewing product

tailbone/templates/products/view.mako

@@ -191,7 +191,13 @@
           % for i, cost in enumerate(instance.costs, 1):
               <tr class="${'even' if i % 2 == 0 else 'odd'}">
                 <td class="center">${'X' if cost.preference == 1 else ''}</td>
-                <td>${cost.vendor}</td>
+                <td>
+                  % if request.has_perm('vendors.view'):
+                      ${h.link_to(cost.vendor, request.route_url('vendors.view', uuid=cost.vendor_uuid))}
+                  % else:
+                      ${cost.vendor}
+                  % endif
+                </td>
                 <td class="center">${cost.code or ''}</td>
                 <td class="center">${h.pretty_quantity(cost.case_size)}</td>
                 <td class="right">${'$ %0.2f' % cost.case_cost if cost.case_cost is not None else ''}</td>