All vim plugins managed by vim-plug, which must be installed separately.
Powerline fonts required for vim-airline to have proper appearance.
sudo apt-get install powerline
See: https://github.com/junegunn/vim-plug
The git config file assumes that there is a file .gitconfig.local
with
contents like the following:
[user]
name = <name>
email = <email>
signingkey = <key id>