Release v1.3.0

Release v1.3.0

Update version to 1.2.0

Update CHANGES

Merge pull request python-distro#173 from nir0s/v1.0.3

Fix makefile and update version in setup.py

Merge pull request python-distro#155 from nir0s/update-CHANGES-for-v1…

….0.2

Update CHANGES for v1.0.2

* Add a CLI and a `distro` entry point. For Python 2.6, argparse will…

… be installed

* Add many test cases (e.g. Raspbian 8, CoreOS, Amazon Linux, Scientific Linux, Gentoo, Manjaro)
* Make distro non-importable on non-compatible platforms (e.g. Windows and tested via AppVeyor)
* Completely redo the testing framework to make it easier to add tests
* Remove six as a dependency
* Emit stderr if `lsb_release` fails
* Fix some encoding related issues
* We now use `bytes` invariantly
* Test on pypy

v1.0.1 release

Update setup.py