Merge pull request #129 from gmponos/patch-1

Allow guzzle 7

Author: Kevinrob

composer.json

@@ -13,11 +13,11 @@
     }
   ],
   "require": {
-    "php": ">=5.5.0"
+    "php": ">=5.5.0",
+    "guzzlehttp/guzzle": "^6.0 || ^7.0"
   },
   "require-dev": {
     "phpunit/phpunit": "^4.8.36 || ^5.0",
-    "guzzlehttp/guzzle": "^6.0",
     "doctrine/cache": "^1.0",
     "league/flysystem": "^1.0",
     "psr/cache": "^1.0",