Purely cosmetic PEP8 based reduction of comment separators

Though PEP8 is in the title, don't get too excited :-)

This should be a boring pull request, as it only addresses the comment separator lines. This pull request reduces their length from 81 chars to 80 chars (and only in the ./ and ./main/ folders based .py files).

Now, to spice it up a bit: **this gives the project > 50% more adherence to PEP8, whoo!**

You can see for yourself by running `pep8 --ignore=E111,E121 --statistics *.py main/*.py` before and after the changes: 46 errors less, isn't that amazing?

Obviously, this note and the whole git dance to apply it actually is more work than this is worth... My motivation though: fix this now and future copy-and-paste of comment separator lines doesn't up the warning/error count.

I repeat: this is a *Purely cosmetic PEP8 based reduction of comment separators* and **ONLY** that.