Merge pull request KnpLabs#425 from GrahamCampbell/patch-1

Use consistent notation

Author: cursedcoder

composer.json

@@ -28,9 +28,9 @@
     },
     "require-dev": {
         "phpunit/phpunit": "~4.0",
-        "php-http/guzzle6-adapter": "~1.0",
+        "php-http/guzzle6-adapter": "^1.0",
         "guzzlehttp/psr7": "^1.2",
-        "sllh/php-cs-fixer-styleci-bridge": "~1.3"
+        "sllh/php-cs-fixer-styleci-bridge": "^1.3"
     },
     "autoload": {
         "psr-4": { "Github\\": "lib/Github/" }