Bump to a future major version; allow only HTTPlug 2

Author: Jean85

.travis.yml

@@ -1,9 +1,6 @@
 language: php
-
 sudo: false
 
-dist: trusty
-
 cache:
     directories:
         - $HOME/.composer/cache/files
@@ -23,9 +20,6 @@ matrix:
           env: COMPOSER_FLAGS="--prefer-stable --prefer-lowest" DEPENDENCIES="doctrine/instantiator:^1.1"
 
           # Test the latest stable release
-        - php: 5.4
-        - php: 5.5
-        - php: 5.6
         - php: 7.0
         - php: 7.1
         - php: 7.2

composer.json

@@ -11,14 +11,14 @@
         }
     ],
     "require": {
-        "php": "^5.4 || ^7.0",
-        "php-http/httplug": "^1.1 || ^2.0",
+        "php": "^7.0",
+        "php-http/httplug": "^2.0",
         "php-http/message-factory": "^1.0",
         "php-http/message": "^1.6",
         "symfony/options-resolver": "^2.6 || ^3.0 || ^4.0"
     },
     "require-dev": {
-        "phpspec/phpspec": "^2.5 || ^3.4 || ^4.2",
+        "phpspec/phpspec": "^4.2",
         "guzzlehttp/psr7": "^1.4"
     },
     "suggest": {
@@ -37,7 +37,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "1.8-dev"
+            "dev-master": "2.0-dev"
         }
     }
 }

src/HttpMethodsClient.php

@@ -198,7 +198,7 @@ public function send($method, $uri, array $headers = [], $body = null)
      *
      * {@inheritdoc}
      */
-    public function sendRequest(RequestInterface $request)
+    public function sendRequest(RequestInterface $request): ResponseInterface
     {
         return $this->httpClient->sendRequest($request);
     }