Ian Dunn: unchecked unserialize usages in audit-trail-extension/audit-trail-extension.php

in: https://github.com/iandunn/audit-trail-extension/blob/master/audit-trail-extension.phpL106 https://github.com/iandunn/audit-trail-extension/blob/master/audit-trail-extension.phpL112 https://github.com/iandunn/audit-trail-extension/blob/master/audit-trail-extension.phpL133...