Bump product versions:

- Products.ExternalMethod -> 2.13.1

- Products.MailHost -> 2.13.2

- Products.StandardCacheManagers -> 2.13.1

versions.cfg

@@ -16,12 +16,12 @@ MultiMapping = 2.13.0
 nt-svcutils = 2.13.0
 Persistence = 2.13.2
 Products.BTreeFolder2 = 2.13.4
-Products.ExternalMethod = 2.13.0
-Products.MailHost = 2.13.1
+Products.ExternalMethod = 2.13.1
+Products.MailHost = 2.13.2
 Products.MIMETools = 2.13.0
 Products.OFSP = 2.13.2
 Products.PythonScripts = 2.13.2
-Products.StandardCacheManagers = 2.13.0
+Products.StandardCacheManagers = 2.13.1
 Products.ZCatalog = 2.13.27
 Products.ZCTextIndex = 2.13.5
 Record = 2.13.0