Require outside of bundle

gistfile1.rb

# Allows `require` to work for libs outside of Bundler's environment, so you can require
# gems that aren't in the project's Gemfile while inside an irb session (for example).
if defined?(Gem.post_reset_hooks)
  Gem.post_reset_hooks.reject!{ |hook| hook.source_location.first =~ %r{/bundler/} }
  Gem::Specification.reset
  load 'rubygems/custom_require.rb'
  alias gem require
end