fix generate_command rake task
Use Bundler gem conventions.
Add VERSION constant. Use latest version of appraisal.
Add appraisal to test across versions; fix support for capybara 1.0
Created a Response object for the success/message pair
Move code that compiles Webkit into separate file to support Ruby 1.9.2
preserve file permissions on binary copy
Added rake tasks for releasing gems
Don't require tasks from gems when building
Fixed driver spec running twice during rake
Added commented out integration specs
Refactor command lookup so that generated commands can automatically …