Author: Ilya Tregubov
MDL-81411 mod_assign: Use choicelist for Additional attempts.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=45227cb644fb0e834863b6282061619439a364f5
http://github.com/moodle/moodle/commit/45227cb644fb0e834863b6282061619439a364f5
+ 4.5 en [attemptreopenmethod_manual_help,mod_assign]
+ 4.5 en [attemptreopenmethod_untilpass_help,mod_assign]