Fix for vertical navigation bar brand image.

Author: jeff-phillips-18

src/navigation/vertical-navigation.html

@@ -8,7 +8,7 @@
         <span class="icon-bar"></span>
       </button>
       <span class="navbar-brand">
-        <img class="navbar-brand-icon" ng-if="brandSrc" ng-src="brandSrc" alt="{{brandAlt}}"/>
+        <img class="navbar-brand-icon" ng-if="brandSrc" ng-src="{{brandSrc}}" alt="{{brandAlt}}"/>
         <span class="navbar-brand-txt" ng-if="!brandSrc">{{brandAlt}}</span>
       </span>
     </div>