To install the dependencies, run these commands:
$ sudo apt-get install python-{dev,pip,virtualenv} ruby-compass git libpq-dev
You will need the latest Node:
sudo add-apt-repository ppa:chris-lea/node.js sudo apt-get update sudo apt-get install nodejs
And the latest version of CoffeeScript:
sudo npm install --global coffee-script
This will install almost anything you need for development. The only thing you need to install manually is elasticsearch, which is required to run the application.
Before installing elastisearch_, you need a JRE, for example:
$ sudo apt-get install openjdk-7-jre
The quickest way to install elastisearch is to simply install the deb package:
$ wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.20.5.deb $ sudo dpkg -i elasticsearch-0.20.5.deb
After installing the above, continue along in the INSTALL.rst