* [bugfix] fix bug with RouteGuarded poped up in RouteGroup match
* add '_' to allowed args in URLPattern
0.1.5
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* introduced RequestParams.exception_factory which abstracts away HTTPBadRequest raise in case of invalid data being supplied
* [bugfix] RouteGuarded.response now installed correctly, previously it sometimes contained NoUrlMatched objects which are not responses
0.1.4
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* RequestParams.post_processor now also can be accumulated via addition
* fix bug in RequestParams which prevented Option wrap SchemaNode objects directly
0.1.3
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* fix broken 0.1.2 release by including CHANGES file in dist
0.1.2
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* trace factory made configurable via Configuration.trace attribute
* method and PATH_INFO extraction delegated to configuration, allows implementing routing for other request wrapper (werkzeug or django's request for example)
* routes now have access to configuration object via ``cfg`` attribute
0.1.1
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* allow guards return None (routing doesn't break on this and proceed with old trace)
* RequestParams now can accept colander.SchemaNode directly (allows to supply validators)