Support multiple LDAP groups on group members page

app/views/groups/members.html.haml

@@ -28,8 +28,18 @@
     .js-toggle-content.hide.new-group-member-holder
       = render "new_group_member"
 
-- if ldap_enabled? && @group.ldap_cn.present?
+- if ldap_enabled? && @group.ldap_group_links.any?
   .bs-callout.bs-callout-info
+    The members of this group are sync with LDAP.
+    %ul
+      - @group.ldap_group_links.each do |ldap_group_link|
+        %li
+          People in cn
+          %code= ldap_group_link.cn
+          are given
+          %code= ldap_group_link.human_access
+          access.
+  -#
     The members of this group are synced with the LDAP group with cn
     %code #{@group.ldap_cn}
     \. They are given