Clean up lots of models.

app/Models/Configuration.php

@@ -25,6 +25,17 @@ class Configuration extends Model
 {
     use SoftDeletes;
 
+    /**
+     * The attributes that should be casted to native types.
+     *
+     * @var array
+     */
+    protected $casts
+        = [
+            'created_at' => 'date',
+            'updated_at' => 'date',
+        ];
+    /** @var array */
     protected $dates = ['created_at', 'updated_at', 'deleted_at'];
     protected $table = 'configuration';