First you need Node.js installed.
Once you have Node.js, you'll need to install the following global dependencies (you may need a sudo in front of this command):
npm install -g casperjs gulp jshint loopback
Install local dependencies with npm:
npm install
You can run the web server with:
gulp
Use the following command to run the tests:
gulp test
Run JSHint on your code like this:
jshint .