//REFRESHER
func refresh() {

    self.usernames.removeAll()
    self.userIDs.removeAll()
    self.isFollowing.removeAll()


    let query = PFUser.query()

    query?.findObjectsInBackground(block: { (objects, error) in

        if error != nil {
            print(error)

        } else if let users = objects {

            //self.usernames.removeAll()
            //self.userIDs.removeAll()
            //self.isFollowing.removeAll()

            for object in users {

                if let user = object as? PFUser {

                    if user.objectId != PFUser.current()?.objectId {

                        self.usernames.append(user.username!)
                        self.userIDs.append(user.objectId!)

                        let query = PFQuery(className: "Followers")

                        query.whereKey("follower", equalTo: PFUser.current()?.objectId)
                        query.whereKey("following", equalTo: user.objectId)

                        query.findObjectsInBackground(block: { (objects, error) in

                            if let objects = objects {

                                if objects.count > 0 {

                                    self.isFollowing[user.objectId!] = true

                                } else {

                                    self.isFollowing[user.objectId!] = false

                                }

                                if self.isFollowing.count == self.usernames.count {

                                    self.tableview.reloadData()

                                    self.refresher.endRefreshing()

                                }

                            }

                        })


                    }

                }

            }
            //self.refresher.endRefreshing()

        }


    })

}