title: developer studio 3.8.0 not working on eclipse 4.5.1
body: <p>I am having problems using developer studio 3.8.0 on the eclipse 4.5.1 (mars)</p>
  
  <p>the installation of the developer studio on eclipses 4.5.1. went well(see the attached screenshot install history ; 
  <a href="https://i.stack.imgur.com/UeTE6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UeTE6.png" alt="enter image description here"></a></p>
  
  <p>yet after the installation, the "developer studio" tool button disappeared from the top tool bar of the eclipse; (see the attached screenshot); </p>
  
  <p><a href="https://i.stack.imgur.com/qdmw9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qdmw9.png" alt="enter image description here"></a></p>
  
  <p>also the "wso2" selection disappeared from the selection items under the "new" button (see attached screenshot)<br>
  <a href="https://i.stack.imgur.com/JRkbv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JRkbv.png" alt="enter image description here"></a></p>
  
  <p>does anyone have idea?</p>
  
  <p>thanks </p>