* lib/rubygems:  Update to RubyGems master ec8ed22.  Notable changes
  include:

  * Renamed extension_install_dir to extension_dir (backwards
    compatible).

  * Fixed creation of gem.deps.rb.lock file from
    TestGemRequestSet#test_install_from_gemdeps_install_dir

  * Fixed a typo and some documentation.

* test/rubygems:  ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44129 b2dd03c8-39d4-4d8f-98ff-823fe69b080e