No longer colour-in the 80th column.

Signed-off-by: JP-Ellis <coujellis@gmail.com>
Remove irrelevant mac config.

Signed-off-by: JP-Ellis <coujellis@gmail.com>
vim-indent-guide:  Make the highlighting more subtle.

Signed-off-by: JP-Ellis <coujellis@gmail.com>
Added two new plugins:

- cpp-enhanced-highlight;
- rust.vim.

Signed-off-by: JP-Ellis <coujellis@gmail.com>