Changelog for Falcon 0.3.0

Breaking Changes

Date headers are now returned as :class:datetime.datetime objects instead of strings.
The expected signature for the add_route() method of custom routers no longer includes a method_map parameter. Custom routers should, instead, call the :meth:falcon.routing.util.map_http_methods function directly from their add_route() method if they require this mapping.

This release includes a new router architecture for improved performance and flexibility.
A custom router can now be specified when instantiating the :class:API class.
URI templates can now include multiple parameterized fields within a single path segment.
Falcon now supports reading and writing cookies.
Falcon now supports Jython 2.7.
A method for getting a query param as a date was added to the :class:Request class.
Date headers are now returned as :class:datetime.datetime objects.
A default value can now be specified when calling :meth:Request.get_param. This provides an alternative to using the pattern::

value = req.get_param(name) or default_value
Friendly constants for status codes were added (e.g., :attr:falcon.HTTP_NO_CONTENT vs. :attr:falcon.HTTP_204.)
Several minor performance optimizations were made to the code base.

The query string parser was modified to improve handling of percent-encoded data.
Several errors in the documentation were corrected.
The :mod:six package was pinned to 1.4.0 or better. :attr:six.PY2 is required by Falcon, but that wasn't added to :mod:six until version 1.4.0.