Laravel-5.1 geonames, cloning repository using Composer

I want to use geonames for addresses on a website. I'm developing it using Laravel 5.1. I found this useful as a tutorial to get started: Ipalaus Laravel 4.* for Geonames.

Because of its version incompatibility, I contacted a co-worker on the project who redirected me to use his repository: My conversation with Javier Martinz on L-5.1 compatible update. The simple solution was to add his repository which I did in composer.json. After running this I was expecting to have seen the repository cloned and have artisan command for geonames, to my surprise nothing of sort.

How do I clone the repository? I have written him but no response for now. I suppose he's taken a break for the holidays.

via Chebli Mohamed