Merge pull request pulp#229 from CodeHeeler/release-3.0.0b4

Bump version to beta4, add release notes

Pulp Python 2.0.3 GA

Merge pull request pulp#195 from pcreech/beta2-cps

Beta2 cps

2.0.3 beta 1

Merge pull request pulp#181 from werwty/3.0-dev

Bump version to beta3, add release notes

Bump version for b2 release, add python_requires specifier

Merge pull request pulp#164 from werwty/update-setup

Prepare setup.py for release

Bump version for 3.0.0b1.dev0 release

Tagging package [pulp-python] version [2.0.2-1] in directory [./].

Tagging package [pulp-python] version [2.0.2-0.1.beta] in directory […

…./].