Author: Dan Poltawski
MDL-26611 Roles Language - remove reference to 'legacy role type'
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f2ad1655389622a0031bd9162b346aeb70011d95
http://github.com/moodle/moodle/commit/f2ad1655389622a0031bd9162b346aeb70011d95
+ 2.2 en [highlightedcellsshowdefault,core_role]