Git commits in Moodle 3.5.1 by cescobedo

commit 2a8f28520d6597669ae8e0e963dd36c1ee730516
Author: cescobedo <carlos.escobedo@gmail.com>
Date:   Wed, 20 Jun 2018 17:43:28 +0800
Tag:    v3.5.1

MDL-61296 auth_ldap: remove PHP notices when field does not exist.

commit d3e3f0f109bc8c2e40aeb28670a9b268defe5c89
Author: cescobedo <carlos.escobedo@gmail.com>
Date:   Wed, 06 Jun 2018 07:02:00 +0800
Tag:    v3.5.1

MDL-57968 core_message: Remove multiple unnecessary AJAX requests