Package each exercise of welcome into its own repertory
Move TurmiteWorld.java & TurmiteWorldView.java into src/jlm/universe/turmite
Merge branch 'master' of github.com:g-humbert/JLM
Correct a type in package name : dif21 -> diff21
Update po4a.conf in order to let it work with the reorganization of welcome
Correct some typo in LoopFor.html
Update French translations
Correct a typo in Close10.html
Update ChangeLog :
* packaging of welcome
* updating French translations