Adds tar.gz package, which was missing
Merge branch 'hotfix/0.4.1dev'
Merge tag '0.4.1dev' into develop

0.4.1dev
Adds MANIFEST.in , and includes README.rst which should prevent problems while installing the package from pip.
Merge branch 'hotfix/0.4.2dev'
Merge tag '0.4.2dev' into develop

0.4.2dev
Version bump