Fixed i18n domain in GenericSetup profiles to be `plone`. Other values aren't supported for GS profiles.

svn path=/plone.app.discussion/trunk/; revision=33492

plone/app/discussion/profiles/default/actions.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <object name="portal_actions" xmlns:i18n="http://xml.zope.org/namespaces/i18n">
  <object name="site_actions">
-  <object name="review-comments" meta_type="CMF Action" i18n:domain="plone.app.discussion">
+  <object name="review-comments" meta_type="CMF Action" i18n:domain="plone">
    <property name="title" i18n:translate="">Moderate comments</property>
    <property name="description" i18n:translate=""></property>
    <property name="url_expr">string:$portal_url/@@moderate-comments</property>

plone/app/discussion/profiles/default/controlpanel.xml

@@ -2,7 +2,7 @@
 <object
     name="portal_controlpanel"
     xmlns:i18n="http://xml.zope.org/namespaces/i18n"
-    i18n:domain="plone.app.discussion"
+    i18n:domain="plone"
     purge="False">
 
     <configlet

plone/app/discussion/profiles/default/portal_atct.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <atcttool xmlns:i18n="http://xml.zope.org/namespaces/i18n">
-    <topic_indexes i18n:domain="plone.app.discussion">
+    <topic_indexes i18n:domain="plone">
 
         <index name="commentators" friendlyName="Commentators"
             description="Users who have commented on the item"

plone/app/discussion/profiles/default/types/Discussion_Item.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <object name="Discussion Item" meta_type="Factory-based Type Information"
-   i18n:domain="plone.app.discussion" xmlns:i18n="http://xml.zope.org/namespaces/i18n">
+   i18n:domain="plone" xmlns:i18n="http://xml.zope.org/namespaces/i18n">
  <property name="title" i18n:translate="">Comment</property>
  <property name="description" i18n:translate="">Comments added to a content item.</property>
  <property name="content_icon">discussionitem_icon.gif</property>