Options

Simplified setup.

Added wheel distribution format. Updated test matrix.

Moved from BSD to Apache Software License.

Moved status to production/stable from beta.

Doc and config tweaks.

Python 2.6 support wavering, primarily because of failure of
``stuf`` 0.9.16 to build there. 0.9.14 works fine. But either
``stuf`` support will have to improve (I've submitted a pull
request that fixes the problem), or we'll have to swap ``stuf``
out, or we''ll have to decomit py26.

Added snazzy badges to PyPI readme

Changed dependencies to utilize new ``nulltype`` package
(unbundling it). Ensured tested on all lastest Python versions.

Added ``OptionsClass`` base class. If client classes inherit from
this, they automatically get ` set()`` and ``settings()`` methods.