Cartouche

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* Fixes broken support for Python 2

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* Adds support for instance attributes in the class docstring using an
Attributes block.

* Adds support for code samples in docstrings with Usage block.

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* Fix for issue 13: bail out of setup function if called by nose

* Fix for issue 10: chicken/egg issue on importing version number in setup...

* Fix for Issue 8, dots in type specifier

* Moved project to GitHub

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* Changed the project name from Cartouche from Hieroglyph to avoid a naming
clash.

* Ensured Python 3 compatibility

* Added support for Yields blocks.