Update to version 1.4.1 and changes noted in CHANGELOG.txt.

Remove Py3.2 from travis and setup.py classifier list.

The code does work on Py3.2 but attr (dependency of py.test)
doesn't work on Py3.2. So removing 3.2 from .travis.yml and
setup.py trove classifier.

New version 1.3.

1) Use setuptools instead of distutils.
   I will continue non-wheel on pypi since I am not familiar with
   wheels, and can't spend time on it if this breaks someone's
   setup.
2) Made entry in changelog.

Changed version to 1.2. See CHANGELOG.txt.

Examples in README.rst.

Few examples added to README.rst. Link to blog article is also
included.