Encoding::utf_16be issue with CGI in Shoes Policeman.rb

# Dummy line so it doesn't try to pick up encoding from below
# Testing "uninitialized constant Encoding::UTF_16BE" error
# that occurs in Shoes Policeman built with Ruby 1.9.1
# The below works in Shoes 2, but not in Shoes 3
#
# Problem seems to be in CGI
# See \dist\ruby\lib\cgi\utli.rb lines 37 onwards:
=begin
  # Unescape a string that has been HTML-escaped
  #   CGI::unescapeHTML("Usage: foo "bar" <baz>")
  #      # => "Usage: foo \"bar\" <baz>"
  def CGI::unescapeHTML(string)
    enc = string.encoding
    if [Encoding::UTF_16BE, Encoding::UTF_16LE, Encoding::UTF_32BE, Encoding::UTF_32LE].include?(enc)
=end
# 
# If you comment out lines 42 to 55 of util.rb it 'fixes' the problem.

require 'CGI'

Shoes.app do

	stack do
		@textentry = edit_line "Google is here: http://www.google.com"
		@button = button "OK" do
			bta =[]
			@textentry.text.split.each do |word|
				wordval =	if word =~ /http[s]?:\/\/\S+/
								link(word, :click => word)
							else
								CGI::unescapeHTML(word)
							end
				bta << wordval
				bta << " "

			end
			para(bta)
		end
	end
end