Relatorio 0.7.0

Hi, I'm glade to announce the availability of the 0.7.0 release of Relatorio. It is a minor release that adds new features: * Add support for Flat OpenDocument * Add more guess types: 'boolean', 'date', 'time' and 'void' * Replace hard-coded extensions by mimetypes guess But also some fixes: * Update example of document for Genshi >= 0.7 * Remove ResourceWarning in tests Relatorio is available on PyPI as source and wheel: https://pypi.python.org/pypi/relatorio/0.7.0/ The documentation is available at https://relatorio.readthedocs.io/en/0.7.0/