Git commits in Moodle 3.5.5 by Binh Thai

commit c0d4b3ba08eabfb08f79357e6aa1cd785707bf74
Author: Binh Thai <binh.thaigia@nashtechglobal.com>
Date:   Thu, 17 Jan 2019 10:18:20 +0800
Tag:    v3.5.5

MDL-64291 GDPR export: Context paths can be very long, not unique