Update pylint to 2.0.1
Updated 'pylint' to the latest version 2.0.1.
Moved Python 2 support to a separate package.
Full changelog available here.
Installed and ran 'pylint --version' which reported the correct versions for
'pylint' and 'python-astroid'.
Tested linting several Python files with 'pylint' reporting the correct errors.
Reviewers: Triage Team, DataDrake, debug
Reviewed By: Triage Team, DataDrake
Subscribers: EP01, sunnyflunk, DataDrake
Differential Revision: https://dev.solus-project.com/D3348