Fixed installing platform gems
Restored concurrent requires
Fixed installing gems with extensions with --install-dir
Fixed `gem fetch -v` to install the latest version
Fixed installing gems with "./" in their files entries
* test/rubygems/test_gem_package.rb: Tests for the above.
* NEWS: Updated for RubyGems 2.1.3
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42938 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
files when installing RubyGems.
* test/rubygems/test_gem_commands_setup_command.rb: Test for the
above.
* lib/rubygems/ext/ext_conf_builder.rb: Use full path to siteconf.rb
in case the extconf.rb changes directories (like memcached does).
* lib/rubygems/package.rb: Remove double slash from path.
* test/rubygems/test_gem_package.rb: Test for the above.
* test/rubygems/test_gem_package_old.rb: ditto.
* lib/rubygems/source.rb: Revert automatic HTTPS upgrade
* lib/rubygems/spec_fetcher.rb: ditto.
* test/rubygems/test_gem_remote_fetcher.rb: ditto.
* test/rubygems/test_gem_source.rb: ditto.
* test/rubygems/test_gem_spec_fetcher.rb: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39731 b2dd03c8-39d4-4d8f-98ff-823fe69b080e