* lib/rubygems:  Update to RubyGems 2.2.2.  Complete history at:

  http://rubygems.rubyforge.org/rubygems-update/History_txt.html#label-2.2.2+%2F+2014-02-05

* test/rubygems:  ditto.


git-svn-id: svn+ssh://svn.ruby-lang.org/ruby/trunk@44851 b2dd03c8-39d4-4d8f-98ff-823fe69b080e