Make tag-per-group optional, default false

README

@@ -1392,6 +1392,8 @@ maxaliases: maximum number of aliases a group can have. Default 3. Set
 desclimit: maximum number of characters to allow in group descriptions.
     null (default) means to use the site-wide text limits. 0
     means no limit.
+addtag: Whether to add a tag for the group nickname for every group post 
+	(pre-1.0.x behaviour). Defaults to false.
 
 oembed
 --------

classes/Notice.php

@@ -1071,6 +1071,7 @@ class Notice extends Memcached_DataObject
                     common_log_db_error($gi, 'INSERT', __FILE__);
                 }
 
+                if (common_config('group', 'addtag')) {
                     // we automatically add a tag for every group name, too
 
                     $tag = Notice_tag::pkeyGet(array('tag' => common_canonical_tag($group->nickname),
@@ -1079,6 +1080,7 @@ class Notice extends Memcached_DataObject
                     if (is_null($tag)) {
                         $this->saveTag($group->nickname);
                     }
+                }
 
                 $groups[] = clone($group);
             } else {

lib/default.php

@@ -268,7 +268,8 @@ $default =
         array('desclimit' => null),
         'group' =>
         array('maxaliases' => 3,
-              'desclimit' => null),
+              'desclimit' => null,
+              'addtag' => false),
         'peopletag' =>
         array('maxtags' => 100, // maximum number of tags a user can create.
               'maxpeople' => 500, // maximum no. of people with the same tag by the same user