Install lightline plugin
Configure lightline status bar
Use fancy powerline-inspired separators in status bar

I'm not sure if I like these better than the more angular, vertical
separators, but I'll give it a try for a while; I can always revert
this if I end up not liking them.
Never show status bar in terminal

It's rare that I want to see the status bar when using "plain ol' vim"
in the terminal.
Revert "Use fancy powerline-inspired separators in status bar"

For now, I like the more vertically-oriented separators, but I'll
keep 9c779a0 around just in case I change my mind.

This reverts commit 9c779a02a7d0c0a36ed60e747fa5d2d54785a979.
Only show file type in status bar

The default right info for the lightline status bar is

    [ [ 'syntastic', 'lineinfo' ], ['percent'], [ 'fileformat', 'fileencoding', 'filetype' ] ]

but I'm changing it to only show the file type, because that's about
all I really care about.