Normalize package names by PEP-503

[sirkonst]

See https://www.python.org/dev/peps/pep-0503/

[coveralls]

Coverage remained the same at 100.0% when pulling a6b7a75 on sirkonst:hotfix/normalized_package_name into a309a20 on ets-labs:master.

[rmk135]

Hello Konstantin,

Thanks for this, once more :) I will take a detail look and merge it a bit later, cause I really want to check that everything (links, CI, etc...) would work as expected.

Thanks,
Roman

[rmk135]

Thanks :)

[rmk135]

Change has been productized in version 2.1.1 - available on PyPI https://pypi.python.org/pypi/dependency_injector

[sirkonst]

Great!