Changes in version 3.1.1 are:

 * Add 'Export Certificate' option to right click of certificate widget.
 * Use file system linux capabilities for memory locking.
 * Set correct daemon SELinux context when started from PAM module.
 * Fix assertions in parser.
 * Add GcrCollection interface to represent collections of objects.
 * Add GcrGnupgCollection to libgcr.
 * Implement functionality in renderers to populate GtkTreeModel
 * Add a GcrSelector widget.
 * Cleanup unregistering from session.
 * Translations and translation fixes.
 * Build fixes.