style(*): Fixes pep8 violations.

Using a combination of ```autopep8``` and manual edits, this brings the number of pep8 violations for pyrax to 0.

This also adds a .pep8 configuration file that increases the maximum line length for pep8 to 88 characters. 88 is a magic number - it happens to be the value that drops a lot of the sillier violations from consideration while still being readable on git commit diffs.