title: installation "objectaid" feature for eclipse
body: <p>i try to install the feature of diagram  - "objectaid" for eclipe  .. 
  i do all the instruction in the mannual in <code>http://www.objectaid.com/installation</code> and during the installation i get the error - </p>
  
  <pre><code>Unable to read repository at http://www.objectaid.com.
  Unable to read repository at http://www.objectaid.com.
  http://www.objectaid.com is not a valid repository location.
  </code></pre>
  
  <p>i checked all the prerequisites needed like <code>GEF (Graphical Editor Framework)</code> and it was ok .</p>
  
  <p>thanks in advance . </p>