Log message:
tex-latex2pydata{,-doc}: add version 0.6.0

This package writes data to file using Python literal syntax.
The data may be loaded safely in Python using the
ast.literal_eval() function or the latex2pydata Python package.
The data can also be hashed within LaTeX (mdfivesum) so that it
is possible to check for the existence of external cached
content generated with the data.