Vim: really start unfolded at the start

Should've tested that last commit before pushing... `'foldlevel'`
defaults to 0 (ie. everything folded), so as soon as I set
`'foldmethod'` to "indent", all buffers automatically start with
everything folded; almost the exact opposite of what I wanted.

So the typical workflow will be:

- open file
- "<space>" to fold individual items
- to zoom out "zM" to fold everything
- "zr" (repeat if necessary)
Vim: fix bad conditional in autocmds

I had the branches back to front, but hadn't noticed anything anomalous.
Vim: update Command-T

* .vim/bundle/command-t cc6c692...e81ce15 (3):
  > Make Prompt#redraw method private
  > Remove some redundant requires
  > Make exception messages consistent