title: Is it safe to use async/await now?
body: <p>Is it safe to use async-await in Javascript instead of
  generators-promises now, knowing that the syntax has not made yet and
  will be coming with the release of ES8?</p>
  
  <p>What browsers can I count on it being available, and how common are the browsers where this syntax is not available?  By Safe I mean without some transpilers like babel?</p>