title: Unable to upgrade to Android Studio 1.5
body: <p>I'm using <code>Android Studio 1.4.1</code>.
  When I manually try to upgrade Android Studio via</p>
  
  <p><strong>File -> Settings -> Update</strong></p>
  
  <p>I get the message:</p>
  
  <blockquote>
    <p>"You already have the latest version of Android Studio installed".</p>
  </blockquote>
  
  <p>But there should already be 1.5.1 in the stable chanel. I also used all the others chanels but i get the same message all the time.</p>