PEP8+Pylint fixes.

Just some PEP8 and Pylint fixes, no functionality should have changed.

The only part I'm unsure about on that is that I removed `import sublime`, but I could understand if that was required for all sublime plugins for some sort've side effect (although that sounds very unfortunate).

I also wrapped lines over 80 characters, I can understand if that part is unnecessary and I can revert those changes if needed.