title: Fixing rbenv: version `ruby-2.0.0' is not installed
body: <p>I get the error: </p>
  
  <pre><code>         rbenv: version `ruby-2.0.0' is not installed
  </code></pre>
  
  <p>After I ran the following commands:</p>
  
  <pre><code>        git clone https://github.com/neverstopbuilding/sinatra-boilerplate.git
          cd sinatra-boilerplate
          bundle install 
          git init
          bundle exec guard
  </code></pre>
  
  <p>Even though my local and global ruby version is 2.0.0</p>
  
  <pre><code>Macintosh:sinatra-boilerplate jiji$ rbenv local
  ruby-2.0.0
  Macintosh:sinatra-boilerplate jiji$ rbenv global
  2.0.0-p0
  </code></pre>
  
  <p>What am I doing wrong?</p>