wisper subscribers with namespace

idea.md

class MyListener
   on_event "recruitment/monthly_total_updated" do |payload|
     # ...
   end

end

broadcast("recruitment/monthly_total_updated", payload)

instead of

class MyListener
  def recruitment__monthly_total_updated(payload)
    # ...
   end
 end
 
 broadcast(:recruitment__monthly_total_update, payload) # double underscore used to seperate namespace and event name

When an event name is a symbol then it could still be matched to on_event("recruitment/...").

on_event would need to be eval'd in context of object so it has access to private methods etc.