Build the latest `mpv` with brew

build-mpv.sh

# taken from http://coalgirls.wakku.to/faq/playback/compiling-mpv-on-mac-os-x

# install homebrew

# setup
sudo easy_install docutils
export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8

# install python3
brew install python3
pip3 install --upgrade pip setuptools

# install mpv
brew install --HEAD --with-bundle --with-bluray-support --with-libdvdread --with-little-cms2 --with-lua --with-bundle mpv
brew linkapps mpv

# upgrade
brew rm mpv
brew install --HEAD --with-bundle --with-bluray-support --with-libdvdread --with-little-cms2 --with-lua --with-bundle mpv