Merge pull request #5 from ockle/laravel-bind

Fix binding issue in Laravel service provider

src/Support/Laravel/ServiceProvider.php

@@ -44,7 +44,7 @@ public function register()
         $this->app->alias(ClientInterface::class, Client::class);
 
         // Bind if needed.
-        $this->app->bindIf(HandlerStack::class, function () {
+        $this->app->bind(HandlerStack::class, function () {
             return HandlerStack::create();
         });