Description of problem:
On review request for rubygem-bundler (bug 646836), after removing
vendorlized thor (at lib/bundler/vendor/), bundler (version 1.0.3) complains:

[tasaka1@localhost ~]$ irb
irb(main):001:0> require "rubygems"
=> true
irb(main):002:0> require "bundler/cli"
NoMethodError: undefined method `long_desc' for Bundler::CLI:Class
	from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.3/lib/bundler/cli.rb:59
	from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
	from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'
	from (irb):2


lib/bundler/cli.rb inherits Thor class:
-----------------------------------------------------
     2  require 'thor'
     3  require 'thor/actions'
     9  module Bundler
    10    class CLI < Thor
-----------------------------------------------------
and Thor::long_desc seems to be defined in thor.rb with version
0.14.0 and above.

So as bundler needs thor 0.14.0 and above, please update, thank you.