title: cannot find image error in ionic jasmin unit test
body: <p>I have html template like this </p>
  
  <pre><code>&lt;div class="kiosk-logo"&gt;
                      &lt;img  src="assets/img/logo.png"/&gt;
                  &lt;/div&gt;
  </code></pre>
  
  <p>Its working fine. But when i run unit test  (karma + jasmine) , I am getting following error 
  <strong>ERROR in ./src/pages/welcome/welcome.html
  Module not found: Error: Can't resolve './assets/img/logo.png'</strong> </p>
  
  <p>How can solve this issue ?</p>