Decrease cache duration.

This ease usage of slapgrid (if triggered less than each 5 minutes)

master/bt5/vifib_erp5/PathTemplateItem/portal_caches/slap_cache_factory.xml

@@ -26,7 +26,7 @@
         </item>
         <item>
             <key> <string>cache_duration</string> </key>
-            <value> <int>200</int> </value>
+            <value> <int>10</int> </value>
         </item>
         <item>
             <key> <string>description</string> </key>