title: composer error "minimum-stability" setting
body: <p>I am trying to install this <a href="http://knpbundles.com/Exeu/ExeuAmazonECSBundle" rel="nofollow">package</a></p>
  
  <p>ExeuAmazonECSBundle</p>
  
  <pre><code>"require": {
      "php": "&gt;=5.3.3",
      .
      .
      .
      "exeu/amazon-ecs-bundle": "dev-master"
  
  },
  </code></pre>
  
  <p>then</p>
  
  <pre><code>sudo php composer.phar update exeu/amazon-ecs-bundle
  </code></pre>
  
  <p>However it indicates two error potential, I have confirmed it is not type.</p>
  
  <p>my setting is </p>
  
  <pre><code>"minimum-stability": "alpha",
  </code></pre>
  
  <p>and I can install other bundle as 'dev-master'</p>
  
  <p>How can I slove this?</p>
  
  <pre><code>  Problem 1
      - Installation request for exeu/amazon-ecs-bundle dev-master -&gt; satisfiable by exeu/amazon-ecs-bundle[dev-master].
      - exeu/amazon-ecs-bundle dev-master requires exeu/amazon-ecs-php dev-master -&gt; no matching package found.
    Problem 2
      - exeu/amazon-ecs-bundle dev-master requires exeu/amazon-ecs-php dev-master -&gt; no matching package found.
      - symfony/framework-standard-edition 2.2.x-dev requires exeu/amazon-ecs-bundle dev-master -&gt; satisfiable by exeu/amazon-ecs-bundle[dev-master].
      - Installation request for symfony/framework-standard-edition 2.2.x-dev -&gt; satisfiable by symfony/framework-standard-edition[2.2.x-dev].
  
  Potential causes:
   - A typo in the package name
   - The package is not available in a stable-enough version according to your minimum-stability setting
     see &lt;https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion&gt; for more details.
  
  Read &lt;http://getcomposer.org/doc/articles/troubleshooting.md&gt; for further common problems.
  </code></pre>