admin makeups hot fix : remove checkbox for ftop members so that we can not do -1 makeup mass action

efficiently fetch makeups to come data in order to (1) display members with only makeups to come and no makeups to do and (2) speed up display of makeups admin

in makeups screen, update points on ajax success to reflect real point change now performed by more complex logic (this may also helps to detect a failure in ajax call)

extract method, create method to simulate bdm lowering all makeups_to_do and update display with updated nbr of makeups