Author: Juan Leyva
MDL-57410 tool_mobile: New setting for adding menu items in the app
http://git.moodle.org/gw?p=moodle.git;a=commit;h=63d142e2cdd3d40cc5f6512542bd094558fe2cf5
http://github.com/moodle/moodle/commit/63d142e2cdd3d40cc5f6512542bd094558fe2cf5
+ 3.3 en [custommenuitems,tool_mobile]
+ 3.3 en [custommenuitems_desc,tool_mobile]