title: How to define a Bower dependency to a Git repository with no releases tagged?
body: <p>Trying to add a dependency to <a href="https://github.com/samizdatco/arbor">arbor</a> using Bower. This JS library does not have any releases tagged in GitHub, but has been published to Bower. How should the dependency look in <code>bower.json</code>?</p>
  
  <pre><code>"dependencies": {
     "arbor": ...
  }
  </code></pre>