• Here is how you can install Neovim in Ubuntu MATE as 16.04 per 3rd, January 2017.
sudo apt-get install software-properties-common && sudo apt-get install python-software-properties && sudo add-apt-repository ppa:neovim-ppa/unstable && sudo apt-get update && sudo apt-get install neovim && sudo apt-get install python-dev python-pip python3-dev python3-pip && sudo apt-get install python-dev python-pip python3-dev && sudo apt-get install python3-setuptools && sudo easy_install3 pip