[enh] Do not fail on backup and restore if some missing files are not mandatory (#576)
[enh] Do not fail on backup and restore if some missing files are not mandatory (#576)


YunoHost/moulinette-yunohost,YunoHost/yunohost,YunoHost/yunohost,YunoHost/yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost,YunoHost/yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost