* doc/contributing.rdoc:  [DOC] curses is no more in the stdlib
* doc/contributors.rdoc:  Ditto.
* doc/maintainers.rdoc:  Ditto.
* doc/contributors.rdoc:  Ditto.
* doc/standard_library.rdoc:  Ditto.
* doc/syntax/modules_and_classes.rdoc:  Ditto.
* encoding.c:  Ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44121 b2dd03c8-39d4-4d8f-98ff-823fe69b080e