Tornado Web Server 2.0 RC Released

Major changes:

• Automatically add escape characters when outputting to templates
• The standard implementation of AsyncHTTPClient is now simple_httpclient.
• Python 3.2 support.

Minor changes:

• New template tags:
  - {% autoescape ...%} control for adding escape characters
  - {% raw ...%} remove escape characters
  - {% module ...%} for calling UIModules
• {% module Template (path, ** kwargs)%} can now be used to call another template with an independent namespace
• All IOStream callbacks calls are now made directly to IOLoop via add_callback.
• HTTPServer now supports IPv6. To disable it, pass the family = socket.AF_INET parameter to HTTPServer.bind ().
• HTTPClient now supports IPv6 if request is set to allow_ipv6 = True
• RequestHandlers can now use encodings other than utf-8 for the request parameter by overriding decode_argument ()
• Improved performance, especially for applications that use many IOLoop timeouts
• The HTTP OPTIONS method now does not require an XSRF token.
• Output to JSON (RequestHandler.write (dict)) now sets the Content-Type application / json
• Etag calculation can now be configured or disabled by overriding RequestHandler.compute_etag
• USE_SIMPLE_HTTPCLIENT is no longer supported, use AsyncHTTPClient.configure instead.