title: Spring Tool Suite 3.6.1 won't update
body: <p>Updating the <strong>Spring Tool Suite</strong> in Eclipse Luna, I get the following error since I turned off the option to download updates for Eclipse 3.7:</p>
  
  <pre><code>**An error occurred while collecting items to be installed session context was:(profile=DefaultProfile, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
  No repository found containing: osgi.bundle,org.springsource.ide.eclipse.commons.quicksearch,3.6.1.201408250654-RELEASE
  No repository found containing: osgi.bundle,org.springsource.sts,3.6.1.201408250824-RELEASE
  No repository found containing: org.eclipse.update.feature,org.springsource.ide.eclipse.commons.quicksearch.feature,3.6.1.201408250654-RELEASE
  No repository found containing: org.eclipse.update.feature,org.springsource.sts,3.6.1.201408250824-RELEASE
  No repository found containing: binary,org.springsource.sts.ide.executable.win32.win32.x86_64,3.6.1.201408250824-RELEASE-e43
  No repository found containing: org.eclipse.update.feature,org.springsource.sts.package,3.6.1.201408250824-RELEASE-e43
  No repository found containing: binary,org.springsource.sts.package_root,3.6.1.201408250824-RELEASE-e43**
  </code></pre>
  
  <p>The version I have installed is:</p>
  
  <pre><code>Spring Tool Suite 
  Version: 3.6.0.RELEASE
  Build Id: 201407101106
  Platform: Eclipse Luna (4.4)**
  </code></pre>
  
  <p>Does anyone know how to fix this?</p>