Git commits in Moodle 3.4.x by Carson Tam

commit 65e260281bea3870e894352a781b45d33f5690ce
Author: Carson Tam <carson.tam@ucsf.edu>
Date:   Tue, 28 Nov 2017 06:47:53 +0800
Tag:    v3.4.1

MDL-60161 class curl in filelib: Cleaned up doc block.


commit f29bd28d6a7f875d577b0ee67e0c1b0c26e5d350
Author: Carson Tam <carson.tam@ucsf.edu>
Date:   Thu, 28 Sep 2017 23:46:31 +0800
Tag:    v3.4.1

MDL-60161 class curl in filelib: Avoid duplicate params in http header


commit 43f122d32cde66da83c956b1d22202a002062151
Author: Carson Tam <carson.tam@ucsf.edu>
Date:   Fri, 15 Sep 2017 22:53:35 +0800
Tag:    v3.4.0-beta

MDL-59931 mod_quiz: Fixing incorrect pagination count.