HubitatServer: Adds HubitatServer type and adds it to the multiplexer

XIONControlPanel/Controllers/MainViewController.swift

@@ -21,6 +21,7 @@ class MainViewController: UIViewController, SwitchesViewControllerDelegate, Serv
         super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
         
         _serverMultiplex.delegate = self
+        _serverMultiplex.addServer(HubitatServer(URL(string: "https://midna.xionsf.com:6000/apps/api/1/")!))
         _serverMultiplex.addServer(WemoServer(URL(string: "http://midna.xionsf.com:5000")!))
     }
     
@@ -203,7 +204,7 @@ class MainViewController: UIViewController, SwitchesViewControllerDelegate, Serv
     
     func serverMultiplex(_ multiplex: ServerMultiplex, didAddDevices devices: [AnyDevice])
     {
-        _switchesController.devices = devices
+        _switchesController.devices = Array(multiplex.devices)
         _updateVisualization(false)
         
         // Update connection status too, if applicable

XIONControlPanel/Controllers/SwitchesViewController.swift

@@ -122,6 +122,7 @@ class SwitchesViewController: UIViewController,
             })
             
             var snapshot = _collectionViewDataSource.snapshot()
+            snapshot.deleteItems(snapshot.itemIdentifiers(inSection: SwitchesViewController.switchCellsSectionIdentifier))
             snapshot.appendItems(self.devices.map { $0.hashValue }, toSection: SwitchesViewController.switchCellsSectionIdentifier)
             _collectionViewDataSource.apply(snapshot, animatingDifferences: false)
         }