The <Leader>u binding for unite was getting fixed to \ instead of ,

I'm keeping snippets of code and shell transcripts in vimwiki as I work
on things.  Adding syntax highlighting is pretty nice for this.

Also mapped F8 to spit out an ISO-8601 datestamp, which seems useful
for logging times in a diary entry or the like.

Useful for debugging various and sundry keybinding things.  Better this
way because paging through the output of :map by hand is lame.

...I probably won't use it much, but I'm playing with real org mode over
in emacsland and it's handy to have some support here.

It turns out that terminals really can't handle a lot of unicode chars
without freaking out.  Better fonts might help; I'm not honestly sure.

Nothing drastic in this commit; just takes care of some little
inconsistencies and quibbles.  Probably breaks a few files with calls to
filter utilities, but those should be easy to fix on a case-by-case basis.
I'm renaming them because there's nothing vim-specific about them.

- move a few aliases to bin/
  - tags -> build-tags
  - extip -> get-external-ip
- rename some utils in bin/
  - vim-filter-* to filter-*
  - vertical to filter-vertical
- remove some bogus stuff from bin/
  - googleearth
  - d (some thing i was messing around with for menus)
  - pup (nice util, but should install elsewhere)
- add a bin/cheat to hang cheatsheet stuff on
- use fzf-tmux for h alias

Kind of silly to have two aliases here, since they use different markers.

https://github.com/tpope/vim-fugitive/issues/834

...I've been using this more consciously of late.  It's a decent way
to deliberately collapse sections of a file.

- zi enables folding
- `{{{` and  `}}}` denote a section

BPB_TabDrop will open a symlinked file in its canonical location, which is
better (for example) for opening a version controlled .vimrc that is
symlinked from the user's home directory.

This particular cat is pretty thoroughly vacuumed.

Might get rid of this eventually, but it makes long, unwrapped Markdown
files more palatable.

For some reason a bright background seemed helpful the other day.

Re: ultisnips:

  https://p1k3.com/2016/4/14/

Re: Vundle:

  http://www.gmarik.info/blog/2014/why-i-stopped-contributing-to-vundle/

This is a more general, unformatted raw output version of vim-filter-exec.
It will be useful for pulling some utility output into HTML / Markdown
docs in a more generalized way.

I'm using it to make simple image galleries with the terrible python
script in bin/html-gallery.

I don't know if I'll stick with vim-airline for my statusbar, but it has
some appealing features.

Dropped terminal fonts down a bit in size.  Seems better to have a
little more context for editing on this display.  At this res, with
those fonts, I get a 147x40 terminal.  It's reasonably legible.

(I'm currently on a System76 Galago UltraPro or whatever it's called,
purchased in August of 2014 or thereabouts.)

I really like this thing in theory, but it kept breaking my brain on
opening a new buffer.

Silly.

F7:  Opens ~/code/bpb-kit/.vimrc
F8:  ~/notes/scratch
F10: `git commit -av` using fugitive