title: What is the cost of i18n in flex?
body: <p>In flex, most of the i18nized string are injected through the binding with <code>{resourceManager.getString()}</code>.
  Practically, it generates dozen of listener waiting for an update of the resourceManager.localeChain that will rarely (or never in most of the cases...) happen.</p>
  
  <p>I am wondering what is the actual cost of databinding, if there is a way to limit this overhead and if framework such as babel fx are useful?</p>
  
  <p>Note: in my business, this is not an issue if when the user changes its locale he has to logout/login to the the updated labels.</p>