merge revision(s) r45221: [Backport #9798]
* ext/psych/lib/psych/visitors/yaml_tree.rb: support dumping Encoding objects. * ext/psych/lib/psych/visitors/to_ruby.rb: support loading Encoding objects. * test/psych/test_encoding.rb: add test * ext/psych/lib/psych.rb: add version
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45811 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) r45221: [Backport #9798]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45811 b2dd03c8-39d4-4d8f-98ff-823fe69b080e