Add refresh button.

app/components/masthead/masthead.html

@@ -1,5 +1,7 @@
 <div class="masthead">
     <h3 class="text-muted">DockerUI</h3>
+
+    <div class="col-xs-11">
         <ul class="nav well">
             <li><a href="#/">Dashboard</a></li>
             <li><a href="#/containers/">Containers</a></li>
@@ -10,3 +12,10 @@
             <li><a href="#/info/">Info</a></li>
         </ul>
     </div>
+    <div class="col-xs-1">
+        <button class="btn btn-primary" ng-click="refresh()">
+            <span class="glyphicon glyphicon-refresh" aria-hidden="true"></span>
+            Refresh
+        </button>
+    </div>
+</div>

app/components/masthead/mastheadController.js

@@ -8,4 +8,8 @@ angular.module('masthead', [])
                 $scope.showNetworksVolumes = true;
             }
         });
+
+        $scope.refresh = function() {
+            location.reload();
+        }
     }]);