Join lines in Emacs the way I'm used to in Vim.
Ignore dir where Vagrant keeps local machine state.
Pull in a function to swap windows from Emacs Prelude.

I'm not using Emacs Prelude whole hog, because I'm learning Emacs
incrementally, as suggested by Technomancy of emacs-starter-kit fame.
https://github.com/technomancy/emacs-starter-kit/blob/v3/README.markdown
Just let me say "gpg" when I run a GnuPG command.
Emacs can handle YAML files.