* typo
* add a 3rd world which forces the student to check if a baggle is here before calling forward()
Merge remote branch 'upstream/master'
* typo
* add a 3rd world which forces the student to check if a baggle is here before calling forward()
Merge branch 'master' of github.com:jcb/JLM
translated lessons (fr) via po4 which were not commited yet
Merge branch 'master' of github.com:jcb/JLM