[enh] Add last activity for courses
Merge branch 'master' of https://github.com/C4ptainCrunch/beta402
Merge branch 'master' of https://github.com/C4ptainCrunch/beta402
[enh] Switch from clunky tr | cut to sed
Merge branch 'master' of https://github.com/C4ptainCrunch/beta402
Merge branch 'master' of https://github.com/C4ptainCrunch/beta402
Merge branch 'master' of github.com:C4ptainCrunch/beta402
Merge branch 'master' of github.com:C4ptainCrunch/beta402
Merge branch master from C4ptain
[enh] Also display courses mnemonic
[fix] TODO done \o/
[enh] Sort courses by mnemonic
[exp] Toggle navbar when loading course page
[add] Helper function for http://gehol.ulb.ac.be
[enh] Direct link to Gehol from courses
[add] New test for ancestors and descendants Node methods