Git commits in Moodle 3.6.4 by Juan Leyva

commit 9c5af7f9ec824bf13f04a7941dfec3cbe8017855
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Tue, 30 Apr 2019 20:30:51 +0800
Tag:    v3.6.4

MDL-65141 tool_mobile: Return all the language translations

commit 51ee36d03942677e9dacd58e4a93cb3e8925a707
Author: Juan Leyva <juanleyvadelgado@gmail.com>
Date:   Thu, 07 Feb 2019 20:27:29 +0800
Tag:    v3.6.4

MDL-64615 tool_mobile: Do not modify custom download URLs