pjax syntax error

gistfile1.txt

edison$ rails s
/Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/pjax-rails-0.1.1/lib/pjax-rails.rb:1:in `require': /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/pjax-rails-0.1.1/lib/pjax.rb:5: syntax error, unexpected '>' (SyntaxError)
    layout ->(c) { pjax_request? ? false : 'application' }
             ^
/Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/pjax-rails-0.1.1/lib/pjax.rb:5: syntax error, unexpected '{', expecting kEND
    layout ->(c) { pjax_request? ? false : 'application' }
                  ^
/Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/pjax-rails-0.1.1/lib/pjax.rb:5: syntax error, unexpected '}', expecting kEND
/Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/pjax-rails-0.1.1/lib/pjax.rb:10: odd number list for Hash
      new_url = url_for(url ? url : { action: action })
                                             ^
/Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/pjax-rails-0.1.1/lib/pjax.rb:10: syntax error, unexpected ':', expecting '}'
      new_url = url_for(url ? url : { action: action })
                                             ^
/Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/pjax-rails-0.1.1/lib/pjax.rb:29: syntax error, unexpected $end, expecting kEND
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/pjax-rails-0.1.1/lib/pjax-rails.rb:1
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/bundler-1.0.13/lib/bundler/runtime.rb:68:in `require'
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/bundler-1.0.13/lib/bundler/runtime.rb:68:in `require'
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/bundler-1.0.13/lib/bundler/runtime.rb:66:in `each'
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/bundler-1.0.13/lib/bundler/runtime.rb:66:in `require'
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/bundler-1.0.13/lib/bundler/runtime.rb:55:in `each'
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/bundler-1.0.13/lib/bundler/runtime.rb:55:in `require'
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/bundler-1.0.13/lib/bundler.rb:120:in `require'
	from /Users/edison/Sites/beta.foco/config/application.rb:7
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/railties-3.1.0.beta1/lib/rails/commands.rb:51:in `require'
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/railties-3.1.0.beta1/lib/rails/commands.rb:51
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/railties-3.1.0.beta1/lib/rails/commands.rb:48:in `tap'
	from /Users/edison/.rvm/gems/ruby-1.8.7-p334/gems/railties-3.1.0.beta1/lib/rails/commands.rb:48
	from script/rails:6:in `require'
	from script/rails:6