Author: Amaia Anabitarte
MDL-71528 usertours: End button text for one step user tours
http://git.moodle.org/gw?p=moodle.git;a=commit;h=377aee95b5b6f5be952e4ecc64ddb8a5cfe897ab
http://github.com/moodle/moodle/commit/377aee95b5b6f5be952e4ecc64ddb8a5cfe897ab
+ 4.0 en [endonesteptour,tool_usertours]