Fix Unicode bug

Fix Diego Restrepo's bug (see Rev 184).
Update to latest HTML5lib.

vendor/plugins/HTML5lib/test/test_validator.rb

@@ -0,0 +1,31 @@
+#!/usr/bin/env ruby -wKU
+
+require File.join(File.dirname(__FILE__), 'preamble')
+
+require 'html5'
+require 'html5/filters/validator'
+
+class TestValidator < Test::Unit::TestCase
+  def run_validator_test(test)
+    p = HTML5::HTMLParser.new(:tokenizer => HTMLConformanceChecker)
+    p.parse(test['input'])
+    errorCodes = p.errors.collect{|e| e[1]}
+    if test.has_key?('fail-if')
+      assert !errorCodes.include?(test['fail-if'])
+    end
+    if test.has_key?('fail-unless')
+      assert errorCodes.include?(test['fail-unless'])
+    end
+  end
+
+  for filename in html5_test_files('validator')
+    tests    = JSON.load(open(filename))
+    testName = File.basename(filename).sub(".test", "")
+    tests['tests'].each_with_index do |test, index|
+      define_method "test_#{testName}_#{index}" do
+        run_validator_test(test)
+      end
+    end
+  end
+end
+