Pybtex-docutils

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* Add Python 3.4 support, drop Python 3.2 support.

* Support more tags, also fail gracefully on unknown tags (see issue
6, reported by Jellby).

* Use universal wheel for distribution.

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* **BACKWARD INCOMPATIBLE**
The backend now renders into a
list of docutils nodes instead of a single docutils node.

* New :meth:`~pybtex_docutils.Backend.paragraph` method
to render an entry into a single
docutils paragraph.

* The ``<inline>`` wrapper nodes are no more, leading to much simpler
generated code.

* Full test coverage.

* Generated citation nodes now contain text inside a paragraph.

* Minimal example.

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* Copied the backend from pybtex.

* Initial documentation.

* Initial tests and travis.ci integration.