Initial version of transactions. Shell command implemented as an example. Still needs channel cleanup on app side, handling a device dying in the middle of a transaction, and getting device list back to normal.

res/app/device-control/device-control-controller.js

@@ -1,11 +1,11 @@
 module.exports = function DeviceControlCtrl($scope, $routeParams, DeviceService, ControlService) {
-  $scope.device = null
   $scope.control = null
-
-  $scope.promiseOfDevice = DeviceService.get($routeParams.serial)
-    .then(function (device) {
-      $scope.device = device
-      $scope.control = ControlService.forChannel(device.channel)
-      return device
-    })
-}
+  $scope.device = {
+    promise: DeviceService.get($routeParams.serial)
+      .then(function(device) {
+        $scope.device.value = device
+        $scope.control = ControlService.forOne(device, device.channel)
+        return device
+      })
+  }
+}