Removed *warnings* and added documentation link.
Added file with long description for use on PyPI.
Pointed docs link at specific version for the description.
Added DESCRIPTION.rst to doctest file.
Tweaked the formatting & removed the version spec in the docs URL.
Changed setup to read from DESCRIPTION.rst to `long_description`.
Removed text.
Merge pull request #24 from kissmetrics/ajl/add-long-description

Added a reStructuredText long description for inclusion in PyPI page