* ext/syck/token.c: preserve newlines prepended to a block.

* ext/syck/implicit.c (syck_match_implicit): added !merge and !default.

* lib/yaml/constants.rb: remove '\z' escape.

* lib/yaml/emitter.rb: ensure reset of @seq_map shortcut flag.

* lib/yaml/encoding.rb: remove Unicode translation methods.

* lib/yaml/rubytypes.rb: improved round-tripping of Strings.
  [ruby-core:1134]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3937 b2dd03c8-39d4-4d8f-98ff-823fe69b080e