mutt: Remove MobileMe account
msmtp: Don't check cert for fastmail

this might be a bad idea. lets find out.
mutt: Remove unused macros
mutt: Reformat macros for readability
mutt: Add ghu script

this lets me unsubscribe from github issues from within mutt. Neato.
mutt: Add github read status integration
e: Use slightly better shell
vim: Add Swift support
vim: Turn off hardtime. That shit was miserable.
vim: Add haskell plugin
xcode: update aliases for pre-release versions
zsh: Set EDITOR to VISUAL
e: Fix this so that it actually works

Without using `eval`, we can't use a visual editor with a space in it
(we're setting VISUAL to `mvim -v`)
mutt: Update view HTML email macro
mutt: Make ghu and gh-read play nice together

Pretty much a hack to keep this from freezing on me for right now.

Problems:
- threads that I have been unsubscribed from will stay unread on GitHub.
  It would be nice to mark it as read.
- This couples `ghu` and `gh-read` in an unfortunate way.
mutt: Improve mailcap