use new text admin interface to provide text for announce subscription page

extra/modules/root.ptl

@@ -17,6 +17,7 @@ from wcs.categories import Category
 from wcs.formdef import FormDef
 from qommon.tokens import Token
 from qommon.admin.emails import EmailsDirectory
+from qommon.admin.texts import TextsDirectory
 
 from links import Link
 from announces import Announce, AnnounceSubscription
@@ -71,8 +72,12 @@ class AnnouncesDirectory(Directory):
         get_response().breadcrumb.append(('subscribe', _('Subscription')))
         template.html_top(_('Receiving Announces'))
 
+        text = TextsDirectory.get_text('aq-announces-subscription')
         '<p>'
-        _('FIXME')
+        if text:
+            text
+        else:
+            'FIXME'
         '</p>'
 
         '<ul>'
@@ -428,3 +433,7 @@ EmailsDirectory.register('announces-subscription-confirmation',
         N_('Confirmation of Announces Subscription'),
         N_('Available variables: change_url, cancel_url, time, website'))
 
+
+TextsDirectory.register('aq-announces-subscription',
+        N_('Text on announces subscription page'))
+