vim-patch:7.4.1649

Problem:    The matchit plugin needs to be copied to be used.
Solution:   Put the matchit plugin in an optional package.

aedfcbe1e6

Ignore changes to
* Filelist, src/Makefile: Irrelevant to NeoVim
* runtime/vimrc_example.vim, runtime/macros/*, runtime/pack/*: matchit
  is enabled by default in Neovim.

src/nvim/version.c

@@ -90,6 +90,7 @@ static int included_patches[] = {
   1695,
   1654,
   1652,
+  1649,
   1643,
   1641,
   // 1624 NA