* lib/rubygems: update to 1.3.6.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26728 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rubygems/commands/setup_command.rb

@@ -2,7 +2,6 @@ require 'rubygems/command'
 require 'fileutils'
 require 'rbconfig'
 require 'tmpdir'
-require 'pathname'
 
 ##
 # Installs RubyGems itself.  This command is ordinarily only available from a
@@ -117,6 +116,8 @@ By default, this RubyGems will install gem as:
 
     say "RubyGems #{Gem::VERSION} installed"
 
+    uninstall_old_gemcutter
+
     install_rdoc
 
     say
@@ -359,5 +360,14 @@ abort "#{deprecation_message}"
     r.document args
   end
 
+  def uninstall_old_gemcutter
+    require 'rubygems/uninstaller'
+
+    ui = Gem::Uninstaller.new('gemcutter', :all => true, :ignore => true,
+                              :version => '< 0.4')
+    ui.uninstall
+  rescue Gem::InstallError
+  end
+
 end