Improve indentLine performance
Improve indentLine performance

I was annoyed by the big latencies I experienced typing in vim. In the
end I tested the plugins I added lately, and figured out the problem was
caused bu indentLine. I remembered there was an option to improve
performance, and the problem is solved, indeed.

paretje/dotfiles,paretje/dotfiles,paretje/dotfiles,paretje/dotfiles,paretje/dotfiles