This macro does the same thing as `set keymap=dvorak`, so it serves no
purpose.

Update runtime files.

https://code.google.com/p/vim/source/detail?r=5d89d9b40499059e1a64dc35fbae94313fba0098

Re: compatibility issues with users doing `:so
$VIMRUNTIME/macros/matchit.vim`

Fixes #2918

Reviewed-by: Scott Prager <splinterofchaos@gmail.com>
Reviewed-by: Michael Reed <m.reed@mykolab.com>

This removes all instances of '{not in Vi}', '{Vi: ... }', etc.
We don't care about Vi compatibility, so all of these annotations are
useless in nvim. This also removed the syntax definitions for these
items.

In addition, remove instances of '{only when compiled with +feature}'
adjacent to instances of '{not in Vi}' and friends.

Helped-by: David Bürgin <676c7473@gmail.com>
Helped-by: Felipe Morales <hel.sheep@gmail.com>

closes #2535

Vim runtime files based on 7.4.384 / hg changeset 7090d7f160f7

Excluding:
  Amiga icons (*.info, icons/)
  doc/hangulin.txt
  tutor/
  spell/
  lang/ (only used for menu translations)
  macros/maze/, macros/hanoi/, macros/life/, macros/urm/
      These were used to test vi compatibility.
  termcap
      "Demonstration of a termcap file (for the Amiga and Archimedes)"

Helped-by: Rich Wareham <rjw57@cam.ac.uk>
Helped-by: John <john.schmidt.h@gmail.com>
Helped-by: Yann <yann@yann-salaun.com>
Helped-by: Christophe Badoit <c.badoit@lesiteimmo.com>
Helped-by: drasill <github@tof2k.com>
Helped-by: Tae Sandoval Murgan <taecilla@gmail.com>
Helped-by: Lowe Thiderman <lowe.thiderman@gmail.com>