Pyramid-rest

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* Compatibility with updated zope.interfaces
* Using last functionality of pyramid_mongokit
* No more distribute in setup.py

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* Moved mongo connection to pyramid_mongokit.

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* Switch to github.
* Add support for mongo database:

* Setting in ini file ``pyramid_rest.mongo`` considered true by default
* ``MongoConnection`` is registered to registry
* Two properties added to ``request``: ``mongo_connection`` and ``mongo_db``
* Mongo connection gets uri from ``os.environ['MONGO_URI']``
* Database name comes from ``os.environ['MONGO_DB_NAME']``
* Any resource view with a ``model_class`` class attribute with value being
a definition of a ``mongokit.Document`` can inherit ``pyramid_rest.mongo.DocumentView``
to inherit all default actions.

* Add custom renderer which adapts output format depending on accept headers,
format supported are ``application/json`` & ``application/bson``

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* Rename ResourceUtility to ResourceConfigurator to make its role clearer.
* Force human-friendly names for route pattern variables and view callable
parameters, e.g. /applications/{application_id}/users/{id} and
show(context, request, application_id, id)
* Remove ability to configure resource separator in resource names: it's always
'.'
* Singular resources via *add_singular_resource* directive or *singular=True*
keyword argument on *Resource* or *resource_config*
* Moved example from tests directory to root directory: used in test and useful
for documentation.

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* Collection resource only
* Imperative mode via *add_resource* directive
* Declarative mode via *Resource* class
* Declarative mode view *resource_config* decorator