Feature flag evaluation

SketchSystems.spec

Feature flag evaluation
  Initial
    global_toggle_is_on -> On
    global_toggle_is_not_on -> UsualRules
  UsualRules
    staff_id_matches -> On
    user_id_matches -> On
    email_matches -> On
    else -> Off
  On
  Off

SketchSystems_prototype.js

function render(model){
  let current_state_name = model.active_states[0].name;
  return $("h1",
           {style: {color: "darkBlue"}},
           `The current state is: ${current_state_name}`);
}