Rails Composer generates broken app

gistfile1.txt

rails new orange -m https://raw.github.com/RailsApps/rails-composer/master/composer.rb -T -O
Install an example application? 
1)  I want to build my own application

Web server for development?
3)  Unicorn

Web server for production?
3)  Unicorn

Database used in development?
4)  MongoDB

How will you connect to MongoDB?
1)  Mongoid

Template engine?
2)  Haml

Unit testing?
2)  RSpec

Integration testing?
1)  None

Fixture replacement?
1)  None

Front-end framework?
2)  Twitter Bootstrap

Twitter Bootstrap version?
1)  Twitter Bootstrap (Less)

Twitter Bootstrap version?
1)  None

Authentication?
3)  OmniAuth

OmniAuth provider?
3)  GitHub

Authorization?
1)  None

Use a form builder gem?
2)  SimpleForm

Install a starter app?
3)  Home Page, User Accounts


Home#index renders "undefined method new for Twitter:Module"