Hides monitoring connection indicator from footer when monitoring is not configured (#689)

Author: Michał Wójcik

src/ServicePulse.Host/app/layout/footer.html

@@ -22,7 +22,7 @@
                         <i class="fa pa-connection-establishing"></i> Connecting
                     </span>
                 </div>
-                <monitoring-connectivity-status></monitoring-connectivity-status>
+                <monitoring-connectivity-status ng-if="isMonitoringEnabled"></monitoring-connectivity-status>
             </div>
     </div>
   </div>