Author: Juan Leyva
MDL-69095 tool_mobile: Avoid non-https sites using qrlogin by default
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f575093bc40b46c3bd5c512f770a7c72ea588951
http://github.com/moodle/moodle/commit/f575093bc40b46c3bd5c512f770a7c72ea588951
+ 4.0 en [qrcodetype_desc,tool_mobile]