title: IBM Bluemix registry push authentication error
body: <p>When pushing to the Bluemix registry, I get the following error:</p>
  
  <pre><code>47c2386f248c: Waiting 
  2be95f0d8a0c: Waiting 
  2df9b8def18a: Waiting 
  unauthorized: authentication required
  </code></pre>
  
  <p>I've got the <code>cs</code> and <code>cr</code> plugins both installed, an have verified Bx is being added to more auths file. Have tried both using OSX keychain as credstore and without.</p>
  
  <p>When I pull the IBMLiberty example from the BX registry, or build an image with Liberty as the base, it does pull without issue.</p>
  
  <p>I'm running:</p>
  
  <pre><code>docker build . -t registry.ng.bluemix.net/my_space/ibm
  
  docker push registry.ng.bluemix.net/my_space/ibm
  </code></pre>
  
  <p>Have also tried manually exporting <code>BLUEMIX_TRACE=true</code> and re-running the login and init commands. </p>