To install this pack into your emacs-live clone this repository and update the evil-mode submodule, e.g.
git clone https://github.com/siancu/evilmode-pack ~/.evilmode-pack
cd ~/.evilmode-pack
git submodule init
git submodule update
Afterwards add the following to your .emacs-live.el file and restart Emacs:
(live-add-packs '(~/.evilmode-pack))