Author: Huong Nguyen
MDL-71590 usertours: Create language string for activity information
http://git.moodle.org/gw?p=moodle.git;a=commit;h=8a4a205bb52c576376d606b0a416a3b1ed151c71
http://github.com/moodle/moodle/commit/8a4a205bb52c576376d606b0a416a3b1ed151c71
+ 3.11 en [tour_activityinfo_activity_student_title,tool_usertours]
+ 3.11 en [tour_activityinfo_activity_student_content,tool_usertours]
+ 3.11 en [tour_activityinfo_activity_teacher_title,tool_usertours]
+ 3.11 en [tour_activityinfo_activity_teacher_content,tool_usertours]
+ 3.11 en [tour_activityinfo_course_student_title,tool_usertours]
+ 3.11 en [tour_activityinfo_course_student_content,tool_usertours]
+ 3.11 en [tour_activityinfo_course_teacher_title,tool_usertours]
+ 3.11 en [tour_activityinfo_course_teacher_content,tool_usertours]