Git commits in Moodle x.x.x by Carlos Alexandre S. da Fonseca

commit 38e7a9525f22919c654dbc36c56acbe839fe4469
Author: Carlos Alexandre S. da Fonseca <bozohhot@hotmail.com>
Date:   Tue, 21 Nov 2017 20:29:09 +0800
Tag:    v3.5.0-beta

MDL-24678 mod_chat: Fixed race condition on chat module


commit fdddb80b708d10c00de3362bebc2f9559f694590
Author: Carlos Alexandre S. da Fonseca <bozohhot@hotmail.com>
Date:   Tue, 21 Nov 2017 20:28:13 +0800
Tag:    v3.4.1

MDL-24678 mod_chat: Fixed race condition on chat module


commit d36fdb9657fc17344e61b4f18fbf6104257c0e49
Author: Carlos Alexandre S. da Fonseca <bozohhot@hotmail.com>
Date:   Tue, 21 Nov 2017 20:26:39 +0800
Tag:    v3.3.4

MDL-24678 mod_chat: Fixed race condition on chat module