use guzzlehttp/guzzle ^6.3

remove doRequest
add getVersion

Author: robberphex

bin/etcd-php

@@ -21,7 +21,6 @@ require $loader;
 
 $application = new Application('Etcd Console Tool', '1.0.0');
 $application->setCatchExceptions(true);
-$application->add(new \LinkORB\Component\Etcd\Command\EtcdRequestCommand());
 $application->add(new \LinkORB\Component\Etcd\Command\EtcdSetCommand());
 $application->add(new \LinkORB\Component\Etcd\Command\EtcdGetCommand());
 $application->add(new \LinkORB\Component\Etcd\Command\EtcdMkCommand());

composer.json

@@ -14,7 +14,7 @@
     "require": {
         "php": ">=5.3.0",
         "symfony/console": "^2.4 || ^3.0",
-        "guzzle/guzzle": "~3.8"
+        "guzzlehttp/guzzle": "^6.3"
     },
     "require-dev": {
         "phpunit/phpunit": "3.7.*"