title: How to get mongrel working with bundler?
body: <p>Transitioning to bundler with an existing production setup. Naively with a gemfile and setup like:</p>
  
  <pre><code>gem "rails", "2.3.8"
  gem "mongrel", git: "http://github.com/dynamix/mongrel.git"
  
  bundle install --path /mnt/app/shared/bundle
  </code></pre>
  
  <p>Starting with</p>
  
  <pre><code>bundle exec mongrel_rails start --environment=production ...
  </code></pre>
  
  <p>results in </p>
  
  <pre><code>/mnt/app/shared/bundle/ruby/1.9.1/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:166:in `require': 
  no such file to load -- /mnt/services/shared/bundle/ruby/1.9.1/gems/mongrel-1.2.0.beta.1/lib/mongrel/init.rb (MissingSourceFile)
  </code></pre>
  
  <p>What to do?</p>