add is_free param
Merge pull request #80 from AlexandreJouve/feat-13

add is_free param
fix is_free param
fix calendar links not working
Merge pull request #123 from AlexandreJouve/fix-calendar-links

fix calendar links not working
Merge pull request #122 from AlexandreJouve/feat-13.2

fix is_free param
Fix lavajug#24 date issue
add page404