Debian release 0.7.1.dfsg-1

Read README.rst for description in PYPI

Replace latex with simple syntax in docstrings.

Ironically it was causing errors when compiling to latex, so I changed
to a more terminal-friendly syntax.

Some more docstring fixes for mixture.

Debian release 0.6.0.dfsg-1

Update README.

Update doc.

Debian release 0.5-1

0.5 final release.

0.5.rc3 release.