[upgrade] symfony 4 (#3)

* upgrade

* upgrade

* remove test credentials

Resources/config/services.yml

@@ -10,3 +10,4 @@ services:
     dugun_upload.service.upload_service:
         class: Dugun\UploadBundle\Service\DugunUploadService
         arguments: ['%dugun_upload.config%', '@dugun_upload.service.upload.aws_upload_service']
+        public: true

composer.json

@@ -1,6 +1,6 @@
 {
   "name": "duguncom/uploadbundle",
-  "description": "A upload bundle for duguncom",
+  "description": "A upload bundle for duguncom and anneysencom",
   "type": "symfony-bundle",
   "license": "MIT",
   "authors": [
@@ -17,13 +17,14 @@
     "upload bundle"
   ],
   "require": {
-    "symfony/http-kernel": "~2.7|~3.1",
+    "php": "^7.1.3",
+    "symfony/http-kernel": "~4.0",
     "guzzlehttp/guzzle": "~6.1",
-    "aws/aws-sdk-php-symfony": "~1.1"
+    "aws/aws-sdk-php-symfony": "~2.0"
   },
   "require-dev": {
     "symfony/framework-bundle": "~2.7|~3.1",
-    "phpunit/phpunit": "~4.3",
+    "phpunit/phpunit": "~5.6",
     "intervention/image": "^2.3",
     "symfony/var-dumper": "~2.8|~3.2",
     "doctrine/annotations": "1.3.*"