relatorio 0.5.6 released

Relatorio is a templating library which provides a way to easily output all kind of different files (odt, ods, png, svg, ...) from python objects. A new minor release of relatorio has been published that fixes some issues and adds some improvements: * Add expression cache to prevent multiple evaluation of the same * expression * Fix typo when writing manifest * Remove Thumbnails in opendocument * Clean meta in opendocument * Clean template code from draw:frame in opendocument * Use StringIO as failback of cStringIO relatorio is available on PyPI: http://pypi.python.org/pypi/relatorio/0.5.6