Merge pull request #15 from C4ptainCrunch/master

Avoir le master à jour c'est mieux non ?
Merge pull request #21 from titouanc/master

Some enh for the betaprod version
[enh] redirect user to node_canonic when join/leave au course
[rem] remove a todo
[fix] better doc notifications
Merge branch 'master' of github.com:UrLab/beta402