store the user location in redis and broadcast the new location to every body
follos: a user is now able to enter a code and join the event/ leave the event
follo: save the status of an user with the follo (active|pending|refused)
follos: retrieve the list of invites, reply to an invite and refactor the way to store activity in redid
follos: refactor the way to update a list of follos or invites
FORMAT. NO CHANGES.
follos: refactor the way to store a follo
follos: remove useless code
follos: add a 'user_invited' activity
follos: fix issue while replacing a list in redis
follos: refactor invites reply