Author: Aaron Barnes
MDL-30020 blocks/completion: Some criteria do not display complete
Also includes a spruce up of the code
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f0c1bcf5a235c0c783ffa4cfbeff0af4fa649302
http://github.com/moodle/moodle/commit/f0c1bcf5a235c0c783ffa4cfbeff0af4fa649302
+ 2.3 en [returntocourse,block_completionstatus]