Autodeploy your Gitlab projects

I have a gitlab instance set up to host my own git repositories. It is a pretty handy app, you get the features of github, but without having someone else holding your code. I keep the theme for this website as a git repository and wanted to automatically deploy new changes once they are pushed to the master branch. Luckily, gitlab has a webhooks feature, it will call any URL you specify and send a JSON request after every receive.