Added form plugin honeypot to webgui_newsletter. It can be used with:

<tmpl_var subscriptionForm_form>
<tmpl_var form_honeypot>
<tmpl_var form_honeypot_id>

It's used by default now.

lib/WebGUI/i18n/English/Asset_NewsletterCollection.pm

@@ -18,7 +18,14 @@ our $I18N = {
     'number of recent issues' => {
         message => 'Number of recent issues',
     },
-    
+    'useHoneypot label' => {
+        message => q|Use honeypot|,
+        lastUpdated => 0,
+    },
+    'useHoneypot description' => {
+        message => q|Use honeypot to verify humanity.|,
+        lastUpdated => 0,
+    },    
 };
 
 1;