Hide irq, iowait, steal, buffers and cached in web UI when the values are not available

glances/outputs/static/html/plugins/cpu_more.html

@@ -5,19 +5,19 @@
             {{result["cpu"].nice}}%
         </div>
     </div>
-    <div class="table-row">
+    <div class="table-row" ng-if="result['cpu'].irq">
         <div class="table-cell text-left">irq:</div>
         <div class="table-cell">
             {{result["cpu"].irq}}%
         </div>
     </div>
-    <div class="table-row">
+    <div class="table-row" ng-if="result['cpu'].iowait">
         <div class="table-cell text-left">iowait:</div>
         <div class="table-cell" ng-class="getClass('cpu', 'cpu_iowait_', result['cpu'].iowait, 1)">
             {{result["cpu"].iowait}}%
         </div>
     </div>
-    <div class="table-row">
+    <div class="table-row" ng-if="result['cpu'].steal">
         <div class="table-cell text-left">steal:</div>
         <div class="table-cell" ng-class="getClass('cpu', 'cpu_steal_', result['cpu'].steal, 0)">
             {{result["cpu"].steal}}%

glances/outputs/static/html/plugins/mem_more.html

@@ -7,11 +7,11 @@
         <div class="table-cell text-left">inactive:</div>
         <div class="table-cell">{{result["mem"].inactive | bytes}}</div>
     </div>
-    <div class="table-row">
+    <div class="table-row" ng-if="result['mem'].buffer">
         <div class="table-cell text-left">buffers:</div>
         <div class="table-cell">{{result["mem"].buffers | bytes}}</div>
     </div>
-    <div class="table-row">
+    <div class="table-row" ng-if="result['mem'].cached">
         <div class="table-cell text-left">cached:</div>
         <div class="table-cell">{{result["mem"].cached | bytes}}</div>
     </div>