* lib/rubygems/commands/setup_command.rb: Install .pem files.
* test/rubygems/test_gem_commands_setup_command.rb: Test for the
above.
* lib/rubygems/spec_fetcher.rb: Test HTTPS upgrade with URI::HTTPS,
not URI::HTTP. Fixes bug in automatic HTTPS upgrade.
* test/rubygems/test_gem_spec_fetcher.rb: Test for the above.
* lib/rubygems.rb: Version 2.0.2
* lib/rubygems/test_utilities.rb: Ensure scheme and uri class match.
merge revision(s) 39621,39622: [Backport #7991]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39800 b2dd03c8-39d4-4d8f-98ff-823fe69b080e