Ruby 1.9 Compatibility

Completely removed the html5lib sanitizer.
Fixed the string-handling to work in both
Ruby 1.8.x and 1.9.2. There are still,
inexplicably, two functional tests that
fail. But the rest seems to work quite well.

attic/vendor/plugins/HTML5lib/lib/html5.rb

@@ -0,0 +1,13 @@
+require 'html5/html5parser'
+require 'html5/version'
+
+module HTML5
+
+  def self.parse(stream, options={})
+    HTMLParser.parse(stream, options)
+  end
+
+  def self.parse_fragment(stream, options={})
+    HTMLParser.parse_fragment(stream, options)
+  end
+end