Display error message in debug view

src/views/app.html

@@ -248,7 +248,7 @@
     </div>
   </div>
 
-  <div class="row">
+  <div class="row" style="margin-top: 10px;">
     <div class="col-md-2">
       <div class="app-configure-links">
         <div ng-click="setView('display')" ng-class="{ 'active': view === 'display', 'disabled': app.error }">Display</div>
@@ -674,6 +674,8 @@
                 App ID <span class="app-info-meta  text-small">{{ app.id }}</a> </span>
                 <br/>
                 Installed <span class="app-info-meta  text-small">{{ app.creationTime | prettyDate }}</a> </span>
+                <br/>
+                <span ng-show="app.error" class="text-danger"><br/>Error: <b>{{ app.error.message }}</b><br/></span>
             </div>
           </div>
         </div>