title: Update Angular from any version to latest stable
body: <p>I have worked on few projects where I used <code>angular-cli</code> which was configured to create apps, components, services, etc. in rc4 release. Now I'd like to update these project to the final release of angular 2 (or latest), what are the steps I need to do to update it correctly? </p>
  
  <p>Is it better to update it version by version until I reach desired release (so first update it to rc5, check if everything works, then rc6, and so on...) or can update it straight to the latest release?</p>
  
  <p>Thank you in advance.</p>