title: what does ~> mean in gemspec dependencies?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/3414337/meaning-of-tilde-greater-than-in-version-requirement">Meaning of tilde-greater-than (~&gt;) in version requirement?</a>  </p>
  </blockquote>
  
  
  
  <p>I see something like this a lot in gemspecs:</p>
  
  <pre><code>s.add_dependency 'some_gem', '~&gt; 1.5.0'
  </code></pre>
  
  <p>What does ~> mean?</p>