Author: Dan Poltawski
MDL-32508 course: Add basic 'add a section' button at the bottom of the course page
With thanks to LUNS who provided this code from when I did it working
there.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=1abf12532dbb316ab6d34bba1845aa33200ea822
http://github.com/moodle/moodle/commit/1abf12532dbb316ab6d34bba1845aa33200ea822
+ 2.3 en [addanadditionalsection,core]