Merge pull request #14 from messente/travis

Make it possible to install the library with new version of Laravel

Author: UkuLoskit

composer.json

@@ -23,12 +23,12 @@
         "ext-curl": "*",
         "ext-json": "*",
         "ext-mbstring": "*",
-        "guzzlehttp/guzzle": "^6.2"
+        "guzzlehttp/guzzle": "^6.2 || ^7.0",
+        "guzzlehttp/psr7": "^1.8"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.4",
-        "squizlabs/php_codesniffer": "~2.6",
-        "friendsofphp/php-cs-fixer": "~2.12"
+        "friendsofphp/php-cs-fixer": "^2.12"
     },
     "autoload": {
         "psr-4": { "Messente\\Api\\" : "lib/" }