Changed time shift icons

public/app/features/dashboard/timepicker/timepicker.html

@@ -2,12 +2,12 @@
 
 	<li class="dashnav-zoom-out" style="padding-top: 2px">
                 <a class='small' ng-click='ctrl.move(-1)'>
-                        &lt;
+                        <i class="fa fa-arrow-left"></i>
                 </a>
         </li>
 	<li class="dashnav-zoom-out" style="padding-top: 2px">
                 <a class='small' ng-click='ctrl.move(1)'>
-                        &gt; 
+                        <i class="fa fa-arrow-right"></i> 
                 </a>
         </li>
 	<li class="dashnav-zoom-out" style="padding-top: 2px">