Git commits in Moodle 3.4.5 by Tim Schroeder

commit af4c2fb8cf1df299742303036e93f9832a4f2e8d
Author: Tim Schroeder <t.schroeder@itc.rwth-aachen.de>
Date:   Mon, 16 Jul 2018 23:20:36 +0800
Tag:    v3.4.5

MDL-61351 auth_shibboleth: removed redundant session handler class check


commit 823bbbfc00f7d46865c0a76a44701ac1738d5f22
Author: Tim Schroeder <t.schroeder@itc.rwth-aachen.de>
Date:   Mon, 16 Jul 2018 23:19:40 +0800
Tag:    v3.4.5

MDL-61351 core: added \core\session\manager\get_handler_class()


commit 2170351cbcce58fee367017fe4ade6b99ffd7958
Author: Tim Schroeder <t.schroeder@itc.rwth-aachen.de>
Date:   Wed, 04 Jul 2018 23:56:11 +0800
Tag:    v3.4.5

MDL-61351 shibboleth: Logout: fix session handler class not being used