Issuing a new Release

Install bumpversion with:

$ pip install git+ssh://git@github.com:MarkusH/bumpversion.git@sign#egg=bumpversion

Install twine with:
```
$ pip install twine
```
Determine next version number from the changelog.rst (ensuring to follow SemVer)
Ensure changelog.rst is representative with new version number and commit possible changes.
Update the version number with bumpversion:
```
$ bumpversion $part
```
(instead of $part you can use major, minor, or patch.
git push --tags origin master
Check for TravisCI to complete. If TravisCI fails due to code errors, go back to the start and bump the $part with patch
Build artifacts with:
```
$ python setup.py sdist bdist_wheel
```
Upload artifacts with:
```
$ twine upload -s dist/*$newver*
```
Add likely new version to at the top of changelog.rst

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