Update download version for 0.1.3

Author: wyuenho

index.html

@@ -135,7 +135,7 @@ <h1>Backgrid.js</h1>
             <a class="btn btn-large btn-success" href="#examples">See Examples</a>
             <a class="btn btn-large btn-primary hidden-phone hidden-tablet"
                href="https://github.com/wyuenho/backgrid/tags"
-               target="_blank">Download v0.1.2</a>
+               target="_blank">Download v0.1.3</a>
           </p>
         </section>
         <div id="features">