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Released 2010-06-18, codename Rakia
- Added the ability to register application wide error handlers from
modules.
- ``Flask.after_request`` handlers are now also invoked if the request
dies with an exception and an error handling page kicks in.
- Test client has not the ability to preserve the request context for
a little longer. This can also be used to trigger custom requests
that do not pop the request stack for testing.
- Because the Python standard library caches loggers, the name of the
logger is configurable now to better support unittests.
- Added ``TESTING`` switch that can activate unittesting helpers.
- The logger switches to ``DEBUG`` mode now if debug is enabled.