Dev updated dependencies (#24)

Updated dependencies

Author: Nyholm

composer.json

@@ -13,21 +13,20 @@
     "prefer-stable": true,
     "minimum-stability": "beta",
     "require": {
-        "php": ">=5.5",
+        "php": "^5.5 || ^7.0",
         "ext-curl": "*",
         "php-http/httplug": "^1.0",
-        "php-http/message-factory": "^1.0"
+        "php-http/message-factory": "^1.0.2",
+        "php-http/message": "^1.2"
     },
     "suggest": {
         "php-http/discovery": "Allow automatically discover needed HTTPlug implementations"
     },
     "require-dev": {
         "guzzlehttp/psr7": "^1.0",
-        "php-http/adapter-integration-tests": "0.4.*",
-        "php-http/message": "^1.2",
-        "php-http/discovery": "~0.8.0",
+        "php-http/client-integration-tests": "^0.5.1",
+        "php-http/discovery": "^1.0",
         "phpunit/phpunit": "^4.8",
-        "puli/composer-plugin": "^1.0@beta,>=1.0.0-beta9",
         "zendframework/zend-diactoros": "^1.0"
     },
     "autoload": {

tests/PromiseCoreTest.php

@@ -47,7 +47,7 @@ function (ResponseInterface $response) {
                 return $response->withAddedHeader('X-Test', 'bar');
             }
         );
-        static::assertEquals('foo,bar', $core->getResponse()->getHeaderLine('X-Test'));
+        static::assertEquals('foo, bar', $core->getResponse()->getHeaderLine('X-Test'));
     }
 
     /**