* lib/rubygems.rb: bump version to 2.0.14.1. this version fixed
CVE-2015-3900.
* lib/rubygems/remote_fetcher.rb: ditto.
* test/rubygems/test_gem_remote_fetcher.rb: added testcase for CVE-2015-3900
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@51628 b2dd03c8-39d4-4d8f-98ff-823fe69b080e