patch 8.0.1612: need to close terminal after shell stopped commit https://github.com/vim/vim/commit/1dd98334d6daee8abefcd640291d4b777d9f0f96 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Mar 16 22:54:53 2018 +0100 patch 8.0.1612: need to close terminal after shell stopped Problem: Need to close terminal after shell stopped. Solution: Make :terminal without argument close the window by default.

This is a MODIFIED version of libvterm.

The original can be found:
- on the original site (tar archive and Bazaar repository):
	http://www.leonerd.org.uk/code/libvterm/
- cloned on Github:
	https://github.com/neovim/libvterm

Modifications:
- Add a .gitignore file.
- Convert from C99 to C90.
- Other changes to support embedding in Vim.