update NEWS to release/004.052

NEWS

+release/004.052 (2015-07-27b)
+
+    [iptables] Add an "include base::iptables" to base::iptables::rule
+    define so it will run correctly by itself. (adamhl)
+
 release/004.051 (2015-07-27)
 
     [os] Small fix in base::os::debian to one of the systemd-related
@@ -10,9 +15,6 @@ release/004.051 (2015-07-27)
     yum-3.2.29-69 includes this plugin and obsoletes the individual
     package (thus putting the puppet ensure in a loop) (jlent)
 
-    [iptables] Add an "include base::iptables" to base::iptables::rule
-    define so it will run correctly by itself. (adamhl)
-
 release/004.050 (2015-07-24)
 
     [rpm] Making available openafs-1.6.{7,8}-EL{5,6,7}.repo files