Install PhantomJS 2 on debian/ubuntu

install_phantomjs.sh

# Install dependencies for PhantomJS
sudo apt-get -y install build-essential g++ flex bison gperf ruby perl \
  libsqlite3-dev libfontconfig1-dev libicu-dev libfreetype6 libssl-dev \
  libpng-dev libjpeg-dev python libx11-dev libxext-dev

# Directory to install PhantomJS
cd /usr/local/share
sudo git clone git://github.com/ariya/phantomjs.git
cd phantomjs
sudo git checkout 2.0
sudo ./build.sh --confirm --jobs 1
sudo ln -sf /usr/local/share/phantomjs/bin/phantomjs /usr/local/bin