Some pep8 fixes.
pep8 long line fix.
And a few more pep8 long lines fixed.
More long lines fixed.
... and a few more.
etc...
And another one.
Another autopep8 run.
Last few pep8 complaints fixed.

[ci skip]
Changelog update.

[ci skip]
Merge pull request #35 from mcmtroffaes/feature/pep8

Make code pep8 compliant.