Author: Sam Hemelryk
MDL-37644 navigation: new option to display course full names
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d20337f180a716ce95a936c8ca0fb818b11590fe
http://github.com/moodle/moodle/commit/d20337f180a716ce95a936c8ca0fb818b11590fe
+ 2.5 en [navshowfullcoursenames,core_admin]
+ 2.5 en [navshowfullcoursenames_help,core_admin]