user/jszakmeister: turn on indent guides

Get rid of my custom python setup, since indent guides are in the core
now.
user/jszakmeister: drop setting up the colorscheme

It's the default now, so there's no need for it.
user/jszakmeister: drop company-related bits

I've moved them to a separate plugin at work.
user/jszakmeister: implement a better algorithm for finding sniputil

Update my snippet template to match.
user/jszakmeister: drop the unity snippets

I'm moving them to a separate plugin so others can have them too.
user/jszakmeister: no longer need autocmd for reset cursor in man pages

This was fixed a while back, but I never took out my workaround.
user/jszakmeister: remove unused function