title: Fresh Ruby gem from Bundler - cannot load my version.rb file?
body: <p>I wanted to make a fresh Ruby app, so I decided to use <code>bundle gem foo</code> to do it. This gave me the whole:</p>
  
  <pre><code>lib/
    foo/
      version.rb
    foo.rb
  Gemfile
  Rakefile
  foo.gemspec
  README.md
  </code></pre>
  
  <p>structure. Now when I run <code>ruby foo.rb</code>, I get:</p>
  
  <pre><code>`require': cannot load such file -- foo/version (LoadError)
  </code></pre>
  
  <p>foo.rb is just the default:</p>
  
  <pre><code>require 'foo/version'
  
  module Foo
  end
  </code></pre>
  
  <p>Can gems not be ran on their own? I hope I don't have to include my gem into a sample app just to test it out?</p>