* ext/syck/gram.c: flexibility to anchors and transfer methods on
collections.
* ext/syck/token.c: hex escapes.
* lib/yaml/basenode.rb: YamlNode references changed to YAML::BaseNode.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3889 b2dd03c8-39d4-4d8f-98ff-823fe69b080e