Fix command dispatching

app/Http/Controllers/Dashboard/MetricController.php

@@ -71,7 +71,7 @@ class MetricController extends Controller
         $metricData = Binput::get('metric');
 
         try {
-            dispatch(new CreateMetricCommand(
+            execute(new CreateMetricCommand(
                 $metricData['name'],
                 $metricData['suffix'],
                 $metricData['description'],
@@ -115,7 +115,7 @@ class MetricController extends Controller
      */
     public function deleteMetricAction(Metric $metric)
     {
-        dispatch(new RemoveMetricCommand($metric));
+        execute(new RemoveMetricCommand($metric));
 
         return cachet_redirect('dashboard.metrics')
             ->withSuccess(sprintf('%s %s', trans('dashboard.notifications.awesome'), trans('dashboard.metrics.delete.success')));
@@ -146,7 +146,7 @@ class MetricController extends Controller
     public function editMetricAction(Metric $metric)
     {
         try {
-            dispatch(new UpdateMetricCommand(
+            execute(new UpdateMetricCommand(
                 $metric,
                 Binput::get('name', null, false),
                 Binput::get('suffix', null, false),