use TagCollector web, not cmsdoc, to get list of production releases

SiteTests/testjob/tests/CE-cms-swinst

@@ -327,7 +327,7 @@ then
 	missing_arch_tag=1
     fi
   done
-  TagCollectorURL="https://cmsdoc.cern.ch/swdev/CmsTC/cgi-bin/ReleasesXML"
+  TagCollectorURL="https://cmstags.cern.ch/cgi-bin/CmsTC/ReleasesXML"
   echo "<p>Retrieve list of production version from <a href=\"$TagCollectorURL\">$TagCollectorURL</a> and ignore releases before 1_5_x<br>"
   ./fetch-from-web $TagCollectorURL ReleasesXML
   rc=$?