Author: Mark Nelson
MDL-59995 core_admin: added setting to define Python bin path
http://git.moodle.org/gw?p=moodle.git;a=commit;h=391663ce285434f46308c7e92efa260ec6ef310a
http://github.com/moodle/moodle/commit/391663ce285434f46308c7e92efa260ec6ef310a
+ 3.4 en [pathtopython,core_admin]
+ 3.4 en [pathtopythondesc,core_admin]
+ 3.4 en [pythonpathnotdefined,mlbackend_python]