加上 composer json 的 dependency

Author: FreedomKnight

composer.json

@@ -9,7 +9,9 @@
   ],
   "require": {
     "php": ">=5.5.0",
-    "illuminate/support": ">=5.0.0"
+    "illuminate/support": ">=5.0.0",
+    "league/flysystem": ">=1.0",
+    "symfony/http-foundation": ">=2.0"
   },
   "autoload": {
     "psr-4": {